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【单选题】
金属从一种固态晶体结构转变成另一种固态晶体结构的过程称为重结晶,下列转变中( )属于重结晶转变。A.
共晶转变
B.
结晶
C.
再结晶
D.
同素异构转变
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【单选题】A monopoly has the demand curve q = 10000-100p. Its total cost function is c(q) = 1000+10q. The government plans to tax the monopoly's profits at a rate of 50%. If it does so:
A.
the monopoly will increase its price by 50%.
B.
the monopoly will increase its price by more than 50%.
C.
the monopoly will recover some, but not all of the tax it pays by increasing its price
D.
the monopoly will not change its price or the quantity it sells
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【简答题】a short account of written materials or data He was so busy that he only read a concise d of their project.
【单选题】He must have read that short novel written by Mark Twain, _______?
A.
mustn’t he
B.
didn’t he
C.
hasn’t he
D.
shouldn’t he
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