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The result of the experiment was very good, _____ we hadn’t expected.

A. when   B. that  C. which   D. what

 

C

非限制性的定语从句,which代替前面的句子。

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文中共有10处错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏词符号∧,并在此符号下面写出该加的词。
删除:把多余的词用斜线\划掉。
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In modern society, competition is everywhere. No wonder a English philosopher considers competition the source of a series of problem such as frustration and anxiety. Therefore, if we stress cooperation too much, there would be no progress. In my opinion, all are important and necessary.
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