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【单选题】
药效受贮藏时间影响较大的药材是A.
人参
B.
青蒿
C.
茵
D.
细辛
E.
麻黄
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皮皮学刷刷变学霸
举一反三
【单选题】When a tax is placed on the sellers of a product, buyers pay
A.
more, and sellers receive more than they did before the tax.
B.
more, and sellers receive less than they did before the tax.
C.
less, and sellers receive more than they did before the tax.
D.
less, and sellers receive less than they did before the tax.
【单选题】When a tax is placed on the sellers of cell phones, the size of the cell phone market
A.
and the effective price received by sellers both increase.
B.
increases, but the effective price received by sellers decreases.
C.
decreases, but the effective price received by sellers increases.
D.
and the effective price received by sellers both decrease.
【简答题】齿轮滚刀的精度等级及加工场合?选用选用齿轮滚刀应注意哪些问题?
【单选题】An auction with many buyers and many sellers is a:
A.
Offline auction
B.
double auction
C.
reverse auction
D.
forward auction
【单选题】When a binding price floor is imposed on a market to benefit sellers,
A.
no sellers actually benefit.
B.
some sellers benefit, but no sellers are harmed.
C.
some sellers benefit, and some sellers are harmed.
D.
all sellers benefit.
【单选题】What is impolite when shopping at flea market?
A.
To argue about the price with sellers.
B.
To show little enthusiasm for the items you want.
C.
To buy several items from different sellers.
D.
To ask sellers for too low prices.
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