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问题 多项选择题

化验室不能直接排入下水道的废液是（）

A、无机酸类废液

B、强碱性废液

C、含汞.铬.镉.砷.氰化物等超过最高容许排放浓度的剧毒物废液

D、易燃的有机溶剂的废液

答案

参考答案：A, B, C, D

填空题

读短文，用所给动词的适当形式填空。

     English is one of the most important subjects in middle schools. Almost everyone 1_____ (know) that we

should learn English well, but few of us know how 2_____ (learn) it well. Karl Marx has set a good example

for us. He once 3_____ (say), "When one 4_____ (learn) a foreign language, he must use the foreign language."

In this way, he could use several languages. As the saying goes, "Practice makes perfect." When we learn

English, we should read more, speak more, listen to English from time to time and practice 5_____ (write)

every day. Don't be afraid of making mistakes. Only in this way can we learn it well.

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单项选择题

中资商业银行、城市信用合作社、农村信用合作社县级联合社的最高拆出限额不超过该机构各项存款余额的（）

A.8%

B.5%

C.6%

D.7%
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