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【单选题】
中药正式生产的药品批准文号的格式为（）A.
国药准（试）字HXXXXXXXXX
B.
国药准字妇XxxXXXXX
C.
国药准字Sxxxxxxx
D.
国药准字Zxxxxxxxx
E.
国药准字FXXXXxXXX
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举一反三
【单选题】As more of a good is consumed, the marginal utility of an additional unit ________, so consumers are willing to pay ________ for an additional unit.
A.
decreases; less
B.
increases; less
C.
decreases; more
D.
increases; more
E.
does not change; less
【单选题】A profit-maximizing firm that is operating in the short run will sell an additional unit of output as long as:
A.
as doing so reduces the firm's per-unit costs.
B.
doing so reduces the firm's marginal costs.
C.
doing so adds more to revenue than it adds to cost.
D.
there is additional plant capacity with which to produce.
【单选题】The amount of additional satisfaction derived from an additional unit of a good or service is called:
A.
total utility.
B.
marginal cost.
C.
total cost.
D.
marginal utility.
【单选题】________ is the additional cost resulting from producing and selling one additional unit.
A.
Marginal cost
B.
Common cost
C.
Opportunity cost
D.
Target cost
【单选题】The additional cost imposed on society as a whole by an additional unit of pollution is:
A.
the marginal social benefit of pollution.
B.
the marginal social cost of pollution.
C.
the optimal Pigouvian tax.
D.
a technology spillover.
【单选题】According to the law of diminishing returns, an additional unit of
A.
capital produces more output than an additional unit of labor.
B.
labor decreases output.
C.
labor produces more output than the previous unit.
D.
labor produces less output than the previous unit.
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