14、对于下面的代码,不能够正确得到结果'yellow'的代码是( )。 'red', 'banana'=>'yellow'); ?> a、echo "a banana is "; b、echo "a banana is $fruits['banana']"; c、echo "a banana is "; d、echo "a banana is $fruits[banana]"
50、查询所有年龄在20岁以下的学生姓名及其年龄,以下正确的是( )。 a、select sname,sage from student where sage <=20; b、select sname,sage from student where not sage <20; c、select sname,sage from student where not sage >20; d、select sname,sage from student where sage <20;
59、查询名字中第2个字为“阳”字的学生的姓名和学号,以下正确的是( )。 a、select sname,sno from student where sname like '__阳%'; b、select sname,sno from student where sname like '阳%'; c、select sname,sno from student where sname like '__阳'; d、select sname,sno from student where sname like '阳__%';