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【单选题】
It's one thing if a scientific experiment goes wrong in a lab, they say, but something else entirely if it winds up on your dinner plate.A.
appears in the end
B.
annoys
C.
blows away
D.
moves upwards
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皮皮学刷刷变学霸
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【简答题】三七的主产区,历史上三七的两大主产区是____、____,现在____已经成为公认的三七产地和道地产地。
【简答题】三七的主产区,历史上三七的两大主产区是云南、____,现在云南已经成为公认的三七产地和道地产地。
【单选题】三七产业的发展具有下列哪几个特点?( ) (1)建立了规范化、规模化种植基地,原料保障能力得到大幅提升,为三七产业快速发展提供了有力的原料供给保障。 (2)云南省在三七主产地文山州建立了省级三七专业化园区,培养了一批三七专业化龙头企业,大品种拉动效应显著,成为推动三七产业快速发展的推手。 (3)三七基础研究取得重大突破,科技创新成为产业发展的引擎,科技进步支撑了三七产业跨越式发展。 (4)建立了商...
A.
(1) (2) (3)
B.
(1)(2)(4)
C.
(1)(2)(3)(4)
D.
(1)(2)(3)(4)(5)
【单选题】In perfect competition, the marginal revenue curve:
A.
and the demand curve facing the firm are identical.
B.
is always above the demand curve facing the firm.
C.
is always below the demand curve facing the firm.
D.
intersects the demand curve when marginal revenue is minimized.
【单选题】Marginal revenue is:
A.
the additional cost incurred from producing one more unit of output.
B.
the addition to total profit from selling one more unit of output.
C.
the addition to total revenue from selling one more unit of output.
D.
the addition to total output from hiring one more unit of labor.
【单选题】For a competitive firm, marginal revenue is
A.
total revenue divided by the quantity sold.
B.
equal to the quantity of the good sold.
C.
average revenue divided by the quantity sold.
D.
equal to the price of the good sold.
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