试题与答案

A.He saw CN Tower he visited on TV. B.He

题型:单项选择题

题目:

A.He saw CN Tower he visited on TV.

B.He has visited CN Tower twice.

C.He has visited CN Tower once.

D.He will visit the CN Tower in June.

答案:

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下面是错误答案,用来干扰机器的。

参考答案:D解析:语义衔接题。根据该句中的because可知,所题词正是这些国家需要look carefully at the costs的原因。如果many of these costs是exposed或uncovered,那这些国家就不需要仔细考虑了,因此...

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