which of the following cargoes are not carried by bulk carriers?
what do teu and feu mean?
what is an lng carrier?
what is a tanker?
the ship that transports by-product is called ________.
what is a cruise ship?
ro-ro is an acronym for_________.
which of the following vessels is used to carry both passengers and vehicles?
which of the following is not the function of tugs?
which of the following is true about yacht?
what is bulk cargo?
what is dwt?
a: how many tonnes can the vessel load? b:____________________________
what is true about vlcc and ulcc?
water bus belongs to _______.
what does the autopilot system include?
which of the following is true about a ship?
which of the following shows the country the ship belongs to?
where is the anchor chain stowed?
which of the following is not true about the bulkheads?
mooring lines can be used in receiving tug assistance.
anchor equipment includes anchor, anchor chain, fairleads, chain locker.
waterline refers to the line where hull of a ship meets the water surface.
forecastle is located on the bow of a ship, used as a shelter for stores, machinery, etc.
the equipment that can alter and maintain the ship’s course is called telegraph.
bridge is a room or platform from which the ship can be commanded.
gmdss is the equipment used to record various data on a ship.
ais is used to tranit and receive identifying information automatically.
in the galley, electricity is used for heating and cooking for safety reasons.
mooring lines are leading ashore from different parts of the ship to prevent ship's movement.
who is the head of the deck department?
who undertakes bridge watch-keeping from 0800-1200?
who is mainly responsible for cargo affairs?
who is mainly responsible for bridge equipment and instruments?
who is mainly responsible for the management and maintenance of all life-saving appliances and fire-fighting equipment on board?
which of the following is true about the ship master?
which of the following is not the chief officer’s responsibility?
which of the following is not the second officer’s responsibility?
which of the following is not the third officer’s responsibility?
which of the following is not the bosun’s responsibility?
which of the following is not the ab’s responsibility?
which of the following is not the ordinary seamen’s responsibility?
what do cadets usually do on board a ship?
which of the following is the proper answer to the question “what’s your nationality”?
if you have something to declare, where should you go?
what should you do when you receive a wheel order?
what does the wheel order "meet her" mean?
if the anchor is secured firmly in sea bottom, what do you report?
if you want to let go all lines forward except breast line and spring, what should you say?
what does "finished with engine" mean?
"course one eight two" is the answer to the question "what is the course?".
"pay out head line" is an equivalent to "send out head line".
some of the orders do not need to be reported.
the initial movement of the engine order telegraph is from the engine control room.
if you are ordered "stop engine", you need to reply "stop engine", then carry it out, and report "engine stopped".
when the anchor has been heaved out of the ground and is clear of it, the chief officer should report “anchor is clear.”
“the cable is 3 o’clock. ” means “the cable is leading to the starboard.”
mooring lines include head lines, stern lines, spring lines and breast lines.
stern lines are used to prevent ship's backwards movement.
"cast off stern line." is another way to say "let go stern line."
what information should be reported to the pilot station?
why does a ship contact the port?
a dangerous part of the pilot’s job is ________.
a pilot is a person_________ when the ship is approaching a port.
what does a pilot ladder consist of?
it’s unnecessary for a master to cooperate with a pilot.
sometimes, the pilot ladder should be rigged with accommodation ladder.
if a pilot embarks a ship, we need to hoist flag “g” and lower flag “h”.
pilot will never control a ship directly.
the pilot will take over the position of the master when pilotage is compulsory.
the pilot’s presence on board will relieve the master or officer in charge of navigational watch from their duties and obligations.
a vessel gets in touch with a port by vhf on a provided channel.
drafts fore and aft of yukun is 5.3 and 5.4 respectively.
if the officer on watch has any doubt as to pilot's action or intentions, he/she can take necessary actions before the master arrives.
what does berthing mean?
what should a captain do when the vessel is arriving at a port?
before berthing, the master should take control of the ship accompanied by_________.
which of the following is not the captain’s responsibilities when the ship is at anchor?
what factors should be considered when selecting a proper anchor position?
a vessel may only berth on starboard side.
“dragging anchor” means the ship moves away from its mooring because the anchor has failed to hold.
officers on watch know their responsibilities during anchoring or berthing, so the master doesn’t need to give instructions.
once the anchor is dropped, the officer on watch needs to check its position at regular intervals.
if the watch officer of a ship finds dragging, vessels in the vicinity will be informed.
there are three ways of unberthing, that is, bow unberthing, stern unberthing and parallel unberthing.
the traffic in the vicinity, current, wave, etc. should be considered before unberthing.
the responsibility for the vessel’s navigation can be transferred to the pilot.
to prevent the anchor cables from being damaged by strong wind and waves, the friction position of the links should be changed by heaving in and releasing the links regularly.
___________ is the only place that is manned at all times while the vessel is at sea.
________ is a deck officer who is assigned with the duties of watch-keeping and navigation on a ship’s wheelhouse.
the oow should follow a navigational plan to avoid collision according to_______.
_________ takes over the job of an oow.
the chief officer is in charge of the standard __________navigation watch duty.
the second officer is in charge of the standard __________navigation watch duty.
the third officer is in charge of the standard __________navigation watch duty.
what conditions must be satisfied before the officer takes over the bridge watch?
the relieved officer shall introduce to the relieving officer _______________.
when taking over the shift, ____________________.
while keeping on watch at sea, the officer on watch is the representative of the captain.
the oow could leave the bridge during the watch.
according to stcw, the watch-keeping personnel is not allowed to rest.
the oow should check navigational equipment in use at regular interval of time.
heading sets 080 degrees. “080 degrees” should be read into “eighty degrees”.
we can describe a product from its______.
________, a product is anything that can be offered to a market that might satisfy a want or need.
________, products are bought as raw materials and sold as finished goods.
________, products are called merchandise.
according to the teaching video, ________ is another common product type.
the logo of starbucks now is the ____ vision of the company.
starbucks was founded in ____ as a local coffee bean roaster and retailer in 1971.
the two things that people of starbucks hope to do every day when working are ________.
from the very beginning, starbucks set out to be a company that not only celebrated coffee and its rich tradition, but also ________.
in every place that starbucks has been, and evry place that starbucks touches, starbucks has tried to ________.
most people agree that bright colors are ________ to children.
the ________ of these beautiful stamps took him eight years.
the designer spent several years _________ his potential client on designing a car.
looking back, the sweet memories ______ your passion.
we have many ________ in the following picture.
metal is soft and ooth.
cloth is hard and rough.
we call the shape in this picture a ________.
please list some colors that you've got in this period.
product catalogs offer information such as the description of the products, the main features or the benefits of the products, the prices, different models, sizes, color, styles, and so on.
product catalogs offer customers direct and detailed ________ about the products they are interested in.
catalogs are sales tools designed to help both ________ save time and money in selling and buying.
the teacher's advice would be ________ valuable to john who is now at a loss as to what to do first.
it's not a good choice to ________ these products at such high costs.
a ________ skin is easily damaged by too much sunshine.
their coach suggested the sports meeting be ________ because of the bad weather.
there are no tickets ________ for tomorrow's performance.
like most love stories, their ________ also experienced many ups and downs.
what you wrote is not related ______ the topic given.
the old ________ treated badly in some countries.
tell whether the following sentences (no. 13-18) are right according to english grammatical rules. it seems to me that neither of the business partners are entirely right on any issue.
early to bed and early to rise make a man healthy, wealthy and wise.
some of the signs of failure are already clearly visible.
most of the city budget, at least two-thirds, consist of water-related income and expenses.
新产品的开发需要创造力，需要想象力。 the development of new products calls for creativity and ____.
箱子里放着大小不一、五颜六色的模型。 there are many models of different ____ and colors in the box.
这些新型汽车速度快，效率高，行动灵活。 these new cars are fast, ____ and flexible.
我已经提前完成了我的工作，他也提前完成了他的工作。 i have finished my work ____ of schedule. so does he.
这段视频给简要介绍了我们的产品。 this piece of video provides a brief ____ to our products.
这种产品不会引起任何的副作用。 this product will not cause any harmful side ____.
由于金融危机，日本遭受了巨大的经济损失。 japan suffered great ____ losses because of the financial crisis.
他认为自己是一个商人，一个经济学家。 he regards himself as a merchant, an ____.
the slogan "what goes up must come down" was so universally accepted by economists that it was considered_____.
the reason for people to trade is that they believe they will be better off by trading.
is there any ________ on bulk purchases?
may i take this ___________to thank you all for coming?
everyone has the right to live where he wants to, ___________ the color of his skin.
if he wants to get to beijing by tonight, he has no __________ but to go by plane.
they specialized ________ wheat and import silk from japan.
helen hopes to become a friend of __________ purchases her products.
the country needs _____________ in education.
___________with your request, we are sending you the shirt samples.
the process of importing and exporting creates a greater variety of goods and services because it permits countries to specialize in what they do best.
according to text a, only the seller would benefit from international trade.
international trade is a win-win situation.
the sales confirmation is made by and agreed between the buyer and seller.
the format of a memo should include to, from, date and subject.
a sales confirmation is an informal spoken agreement.
an ___________ (addition) charge is made on baggage over 50 kilograms.
after a lifetime of _________ (poor), his last few years were spent in comparative comfort.
when you consider the quality of our products, you'll see our price is quite _________ (reason)
the teacher wasn't __________ (incline) to believe george's excuse.
the price increases were passed on by the firm to the __________(consume).
without your help, i _________ (not finish) my homework.
congratulations on your ______ (achieve).
cre is a logistics services company in china. is that true?
what are the advantages of railroad transport?
these houses are offered for sale at _________ prices. (advantage)
if your parcel is missing, you need to contact the express company and provide your _____________.
the problem lies ____ deciding when to expand the business.
what matters the ______ is the way you look at your life.
a all car is more_____ to run.
the _____ of traffic on the roads has increased dramatically in recent years.
excitement _______ fear as she stepped on the stage.
rains and snowfalls in winter are ______ to the winter crops.
(t/f) you cannot fill in the air waybill in languages other than english.
(t/f) the railroad transport is capable of offering low-cost means of carrying bulky, low-value products.
(t/f) the disadvantages of waterway transport is its limited speed.
(t/f) road transport can reach faraway places.
(t/f) air transport can be used to transport gas and oil.
(t/f) the cost of pipeline construction and maintenance is low.
this late ________(deliver) has caused a lot of customer complaints.
these houses are offered for sale at __________( advantage ) prices.
he wanted to travel to beijing in the most ________(economic) way.
there are three colors in the british flag,_______(name), red, white and blue.
regular _______(maintain) is very important if you want to keep this machine in good order.
if there were more containers, the goods _______(transport) to the u.s.a..
_____ (compare) with tom, jean did much better in english study.
视频中为了更好地让大家理解3d打印的原理，贺永教授举了切什么的逆过程为例。
第一台桌面级3d打印机所使用的打印技术是？
sla不适用于以下何种应用场景？
下列哪些是立体光刻（sla）3d打印的特点？
立体光刻sla打印是面投影的打印方式。
聚合物喷射技术ployjet打印出来的工件具有很高的力学性能。
3d打印中常用的数字模型文件格式是？
下列哪项不属于医疗辅具3d打印
下列哪项3d打印技术不适用于硅胶3d打印
下列哪项不是3打印在工业领域的应用
食品3d打印有什么优势
硅胶3d打印可应用于哪些领域？
3d打印在航空航天领域的优势
3d打印适用于产品大批量生产
喷墨打印硅胶对硅胶的流变性能没有要求
在航空航天领域内，3d打印在可以替代传统制造工艺
3d打印可直接打印含有复杂内部结构的零件
下列属于狭义生物3d打印的是：
不能实现大块组织的3d打印的最根本的问题是？
下列3d打印工艺中可以用来进行陶瓷3d打印的有：
水凝胶3d打印需要考虑生物墨水的哪些性质
下列哪些食品属于水凝胶？
细胞3d打印就是直接把细胞通过3d打印的方式构建出三维实体。
陶瓷3d打印用的陶瓷墨水中的陶瓷粉末容易堵住喷头，因此越细越好。
根据广义生物3d打印定义，人造鼻子假体的3d打印也属于生物3d打印的范畴。
下列哪项打印技术属于电流体动力学打印
双光子聚合打印能够实现纳米级精度打印的主要原因
不同于传统光固化式打印，数字投影微光刻技术能够大幅度提升打印精度的原因在于
电流体动力学打印方式的打印基本单元为
当前，数字投影微光刻技术的主要局限在于
双光子聚合打印目前的局限
数字投影微光刻技术中的动态掩膜同传统平面光刻的掩膜结构类似
高倍放大ccd摄像机用于监控制造过程和对焦
目前，相较于光敏树脂的打印，水凝胶的数字投影微光刻打印可以获得更高的打印精度
泰勒锥的形成主要依靠重力
熔融沉积属于哪一个工艺大类
关于打印速度说法错误的是
如果出现熔融沉积打印的第一层与底板无法粘结的情况时，可采取的有效措施不包括：
通常stl文件中的信息包括
避免挂流的有效办法是在悬臂结构下添加支撑结构，但支撑结构的添加与去除必然导致材料的浪费与效率的低下
以下不属于材料同步送进高能束成形工艺的是
关于slm工艺打印表面质量说法有误的是
以下属于slm工艺激光参数的是
电子束选区熔化与激光选区熔化在工作形式和流程上具有相似性，主要区别在于能量的供应形式上
如果某种工艺条件下金属打印制件的强度超过了传统工艺，那它的延伸率也必然大于传统工艺
一般来说 ，以下几种工艺中材料结合强度最高的是
激光立体成形装备的送料形式有
一般来说，激光立体成形工艺可达到的制件几何复杂度比激光选区熔化成形制件低
在激光立体成形过程中，不同的喷头移动速度导致材料堆积率不同，随着移动速度的提高，熔覆层高度增大
超声振动辅助激光熔会使原本呈高斯分布的激光束能量更加集中
which of the following operations exists insecurity?
which of the following operation is correct?
for personal safety protection, which of the following practices is wrong?
which of the following treatment methods is correct for the waste liquid produced by the experiments?
which of the following operation is wrong?
what kind of gloves should be used when assembling and disassembling glass instruments?
when the clothes are on fire during the experiment, which of the following operations is wrong?
which of the following operation is wrong?
chemicals in laboratory must be labeled with their names to avoid misuse.
when using the fire extinguisher to extinguish the fire, the nozzle of the fire extinguisher shall be aligned with the middle of the flame.
during the chemical experiment, contact lenses can be worn to protect the eyes.
during the experiment, you can extend your head into the fume hood so that you can see clearly and operate flexibly.
chemicals and laboratory instruments should not be placed at the exit of the fume hood to avoid danger.
myopia mirror can play a reliable protective role, so it is not necessary to wear goggles outside during the experiment.
eyewashes should be checked regularly to ensure that the water pressure is sufficient and water is ejected during use.
you can wear sneakers with mesh to enter the laboratory.
during the experiment, students with long hair must tie their hair.
during the experiment, when you have a minor cut, you should forcefully wash the wound with soap and water for a few minutes, and squeeze the blood out.
when the fire on the body is extinguished, the clothes sticking to the skin should be taken off immediately.
in the event of a fire, cover your nose with a dry towel to avoid being oked.
which kind of injector must be used in liquid chromatography?
how many times should the buret be rinsed with titrant at least after it is rinsed with deionized water?
ultraviolet-visible spectrophotometer generally consists of light source, ( ), sample chamber and detector.
the light source of the ultraviolet-visible spectrophotometer can be ( ) or deuterium lamp.
when turning on the gas chromatograph, you should first
which can be used as the detector of high performance liquid chromatography?
what substances are gas chromatography used to separate and detect?
what parts does the gas chromatograph include?
after the buret is filled with the solution, read immediately.
in parallel titration, the liquid level of the titrant must be adjusted to the same scale level before each titration.
when accurately weighing the primary standard, which of the following balances should be used?
in the titration ysis experiment, the more the amount of indicator, the more obvious the color change, and the less the amount of indicator, the less the color change at the end point.
which of the following solutions must be filled in a brown reagent bottle?
the accurate concentration of kmno4 can be calibrated with na2c2o4 as the primary standard.
which one of the following is commonly used as the primary standards?
the concentration of the edta standard solution should keep four significant digits. which of the following expressions is correct?
when the standard addition method is used for the determination of fluorine content, which of the following descriptions is wrong?
which of the following results may occur by increasing the flow rate of carrier gas in gas chromatography?
which of the following results may occur by increasing the column temperature in gas chromatography?
the detector that can be used for high performance liquid chromatography is ( )
what is the purpose of rinsing the syringe in the liquid chromatographic experiment?
high pressure, high efficiency and high speed are the characteristics of modern liquid chromatography. what is the main cause of high pressure?
which substances are used for separation and detection by gas chromatography?
in order to avoid the loss of stationary phase in liquid chromatography, it indicates the aller the better on the polarity difference between the mobile phase and the stationary phase.
since boric acid is a weak acid, it must be converted into a strong acid before titration. which of the following can react with boric acid to form a strong acid?
because the rate of coordination reaction is very fast, the titration speed can be very fast, and even the solution can be connected into a line.
when using the ion exchange column, pay attention that the liquid level should not be lower than the resin, otherwise bubbles will appear in the exchange column.