选择题：I felt somewhat disappointed and was about to leave, _____ something occurred wh

题目内容：

I felt somewhat disappointed and was about to leave, _____ something occurred which attracted my attention.

A.unless

B.when

C.until

D.while

参考答案：

答案解析：

The answers to the problem，the scientists say，is to build up the immune system，w

The answers to the problem，the scientists say，is to build up the immune system，which not only will g

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He copied other people’s ideas in writing his new book，which is a kind of copywrite( )

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As the population increases and human needs expand, we must take care not to _____ all of our natura

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Ignore that stunning view and keep your eyes on the road, _____admiring beautiful scenery or dramati

分类：军队文职人员招聘题型：选择题

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