题目内容

It is true that we need learning.其中“that we need learning”是主语从句,it是形式主语。

A. 对
B. 错

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The reason for his return is because he forgot his file folder.

A. 对
B. 错

请指出以下从句是什么从句。

风险规划的主要策略是

.软件项目风险识别常采用等方法。

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