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问题 多项选择题

在下列建设项目或规划中，（）应划入可能产生“重大环境影响”之列。

A.跨流域调水工程

B.工业区改建规划

C.市区道路改建工程

D.跨区域输变电工程

答案

参考答案：A, D

选择题

--- How is he getting on with his spoken English?

--- Great. Now he can speak English ______ his English teacher.

A．as better as

B．as well as

C．as good as

D．as many as
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填空题
当x=______时，
sinx+cosx
sinx-cosx
无意义．（0°＜x＜90° ）
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