单选题：Man：Do you mind if I sit down here?Woman：——

题目内容：
Man：Do you mind if I sit down here?
Woman：—— A．Not at all．There is plenty of room．
B．Of course．Do sit down，please．
C．Never mind．I’d like to have some companion．
D．Sure．I’d like to have somebody to talk to．

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答案解析：

Science and technology have ___ in important ways to the imp

Science and technology have ___ in important ways to the improvement of agricult

分类：成人英语三级  题型：单选题
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