皮皮学，免费搜题
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【单选题】
结晶法成功的关键步骤是A.
控制好温度
B.
除浄杂质
C.
制成饱和溶液
D.
选择合适溶剂
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反馈参考答案：
举一反三
【单选题】实验完成后,废弃物及废液应如何处置?
A.
倒入水槽中
B.
分类收集后，送中转站暂存，然后交有资质的单位处理
C.
倒入实验门外的过道的垃圾桶中
D.
看看别人怎么处置就怎么处置
【单选题】Who will be the biggest winner with the system?
A.
The motorists.
B.
The police and the wardens.
C.
The shopkeepers.
D.
The disabled motorists.
【单选题】Who is the biggest food wasters?
A.
supermarket
B.
individuals
C.
stores
D.
food bank
【单选题】Who do you think is the biggest fool?
A.
George
B.
The policeman who caught George
C.
Jim
D.
The other members of the jury
【简答题】Sometimes your biggest weakness can become your biggest strength. A boy, who had l 1 his left arm in a car accident, began his lessons with a Judo (柔道大师). But after three months of hard t 2 ,...
【单选题】Who do you think is/are the biggest fool (fools)?
A.
George
B.
Jim
C.
the other members of the jury
D.
both A and B
【单选题】Who is the biggest destroyer of our environment?
A.
animals
B.
plants
C.
humans
D.
nature
【单选题】Who can experience the biggest change in happiness?
A.
A young man who is going to find a job
B.
An unmarried nun who has lots of friends
C.
An employee who is rewarded with a gift
D.
A woman who has just lost her husband
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