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【单选题】
实验室危险药品分类贮藏规定易燃剂与氧化剂不能混放，下贮放不正确的是（）。A.
乙醚、丙酮、乙醇放在通风阴凉的地方
B.
高氯酸、双氧水放乙醚旁
C.
高氯酸、氯酸钾放置于砂箱内
D.
乙醚、苯、苯酮贮放温度<30℃
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举一反三
【单选题】—_____ you have bought me! —I got them at the market. [ ]
A.
What a big fish
B.
How a big fish
C.
What big fish
D.
How big fish
【判断题】The big fish were very regretful because they didn’t listen to the little fish’s advice.
A.
正确
B.
错误
【简答题】Ah Q is a successful literary ________ by Lu Xun.
【单选题】Passage Five The Northern Pike is a very bad fish. It is a big, hungry fish, and swallows little fish such as trout and perch. Many Northern Pikes live in Lake Davis. They are killing all the smaller ...
A.
Fishermen will be poisoned too.
B.
The poisons are expensive.
C.
They think that wells will be polluted.
D.
The lake will become unsafe.
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