题目内容
This is a very convenient place to live in, is an airport connecting all the big cities.
| A.20 km northwest of it | B.20 km northwest of which |
| C.northwest 20 km to it | D.northwest 20 km of which |
B
试题分析:句意:这是一个非常方便生活的地方,西北的20千米处,有一个机场连接了所有的大城市。通过分析句子结构,可知这个句子中包含了一个非限制性定语从句,“西北的20千米处”,应该说20 km northwest of which,选B。
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