9、下列不是使用theold-before-newstrategy的方法的是: 。 a、usage of the summary words b、rephrase of different ideas c、repetition of key words d、usage of linking words for a better logic connection
3、以下句子,强调的主题是研究者的活动的是 。 a、the causes of li dendrite formation in li-metal battery were investigated by jones. b、the causes of li dendrite formation in li-metal battery haven been widely investigated. c、there have been several investigations into the causes of li dendrite formation in li-metal battery. d、some researches have studied the causes of li dendrite formation in li-metal battery.
17、该句逗号是否使用正确:one of the main challenges encountered by the refining industry worldwide, is the deterioration in feedstock quality and the introduction of heavy crude oils.
18、单独一个短语也可以充当一个句子。
19、当两个句子之间谈论的内容比较紧密关联的时候应该使用逗号来凸显两个句子之间的关联性。
20、在用英文描写实验步骤时,很少使用 ;较少采用人做主语,采用 被动 语态。
21、逗号的用法一般分为四类: commas、 coordinator commas、 inserter commas、 tag commas。
3、以下参考文献引用正确的是 。 a、chow p , cross m , pericleous k . a natural extension of the conventional finite volume method into polygonal unstructured meshes for cfd application. applied mathematical modelling, 1996, 20(2):170-183. b、李然, 郑旭煦. 化工原理. 武汉:华中科技大学, 2009. c、xiaofeng p , ying p , li j . single-phase convective heat transfer in microchannels[j]. progress in natural science:materials international, 2002, 12(10):721-728. d、杜思佳,张虹.海洋条件对单相强迫循环流动影响的理论研究.核动力工程,2009: 30(5),60-64.