解决问题第一题!

【C14】

A．Although

B．Therefore

C．However

D．Even so

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抹灰工程应分层进行，其中底层主要的作用是()。

A.与基体粘结

B.找平

C.装饰

D.保护

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In which of the following aspects has the event had support？

A．Saving energy.

B．Saving water.

C．Raising awareness about how to combat global warming.

D．Increasing people"s knowledge about saving electricity.

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在一个试验中同时研究两个或两个以上的因素，称为()。

A.单因素试验

B.双因素试验

C.多因素试验

D.多因子试验

此题为多项选择题。请帮忙给出正确答案和分析，谢谢！

Justice Departments decision to fire its eight employees has______.

A．caused heated discussion

B．proved to be an avenge to the President

C．made the President angry

D．been the result of the Republican Party"s decision

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