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【单选题】
毒蕈中毒的常见原因有A.
加工方法不当
B.
误食毒蕈
C.
加热不彻底
D.
未加碱破坏有毒成分
E.
不恰当的保藏方法
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举一反三
【简答题】霍尔效应中霍尔电势差的产生是由于运动电荷在磁场中受 (1) 作用的结果。
【单选题】What did the company president do the previous night?
A.
He considered his feelings and thought about his problems.
B.
He thought about whether he should say something.
C.
He planned how he was going to tell his workers.
D.
He wrote out the different habits of different peoples.
【单选题】China’s economic development has made ______ rapid progress in the past 10 years, and young people have made ______ great contribution to this progress.
A.
a; a
B.
the; /
C.
/; a
D.
/; /
【单选题】The national compulsory education provides them ______ to economic progress.
A.
admission
B.
acceptance
C.
approach
D.
access
【单选题】What did the company decide to do at the next step?
A.
It would tighten up its maintenance program.
B.
It premised to suspend flights temporarily.
C.
It promised to strengthen its security conditions.
D.
It decided to resort to the law.
【简答题】If policymakers hope to make faster progress in improving economic performance, reducing poverty, and slowing 【M1】_________ population growth, they will have to go much farther in 【M2】_________ their ...
【单选题】What did the company lack before the man's scheme was implemented?
A.
Talented personnel.
B.
Strategic innovation.
C.
Competitive products.
D.
Effective promotion.
【单选题】What did the company decide to do at the next step?
A.
It would tighten up its maintenance program.
B.
It promised to suspend flights temporarily.
C.
It promised to strengthen its security conditions.
D.
It decided to resort to the law.
【单选题】Why is it possible that economic growth and technological progress are environmentally friendly?
A.
Because they can keep people away from the natural world.
B.
Because they may help preserve more natural land.
C.
Because they can increase productivity.
D.
Because they may not produce pollutants.
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