2019年mba考试英语模拟题——连词1200

{01}We really enjoyed Disneyland. We took all the rides, some of ________ twice, and had lots of fun. I felt just like a kid again. A.which B.that C.it D.them 解析：
试题分析：考查句子结构。题意：在迪士尼乐园乘坐了所有的缆车，有的做了两次，玩得很开心。后一句由三个谓语组成：即took all the rides, (took) some of them twice和had lots of fun。故D项正确。
本题选D。
{02} It puzzles the scientists _____ some mammals produce their young _____ others lay eggs. A.that; while B.what; while C.that; as D.what; as 解析：
试题分析：本句中的it是形式主语 ，真正的主语是后面that引导的主语从句，that在主语从句中不充当任何成分，只起引导作用。第二空的连词while然而，表示上下文轻微的转折关系。As不能表示上下文的转折关系。句义：让一些科学家困惑的是一些哺乳动物生出下一代，而另外一些却产卵。故A正确。
本题选A。