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题型：单选题题类：常考题难易度：普通

2015-2016学年江苏盐城中学高一下期中考试英语试卷

_______it took 200 years to move from the steam engine to the Internet, there could be major development in _______ are now considered frontiers(尖端) of science in just the past few ten years.

A、When, which B、While, which C、While, what D、When, that

举一反三

Backward somewhat technologically ________ we are for the moment, we have confidence in our ability to catch up in time.

We still have the question of ________ they have discovered the trade secret.

He wondered ________ his son was getting along with the experiment.

________ the punishment was unjust , he would accept it without saying anything, because he knew it was the rule of the company.

In fact, no one knows for sure {#blank#}1{#/blank#} it was that made him give up this opportunity.

Could I speak to ________ is in charge of International Sales please?

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