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【单选题】
下列创伤中，属于闭合性损伤的是A.
擦伤
B.
撕裂伤；
C.
刺伤；
D.
挫伤；
E.
火器伤；
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举一反三
【简答题】计算机病毒不能通过（ ）传播。
【单选题】The “how” tradeoff occurs when
A.
a firm decides to produce refrigerators instead of dishwashers.
B.
a farm uses machinery to pick oranges instead of employing migrant workers.
C.
the government increases income taxes paid by the rich.
D.
we answer the macroeconomic question.
【单选题】The big tradeoff is a tradeoff between
A.
efficiency and fairness.
B.
consumer surplus and producer surplus.
C.
taxes and subsidies.
D.
price ceilings and price floors.
【单选题】The tradeoff between inflation and unemployment
A.
implies that policies designed to reduce unemployment also reduce inflation.
B.
was eliminated by improved economic policies in the 1900s.
C.
is a long-run tradeoff, persisting for decades, according to most economists.
D.
None of the above are correct.
【多选题】关于子宫内膜异位症的临床表现，下列描述错误的是
A.
多见于40～50岁妇女
B.
以侵犯卵巢者最为常见
C.
妇科检查子宫多为前倾前屈位
D.
可造成不孕
E.
侵犯卵巢可形成巧克力囊肿
【单选题】Tradeoff is
A.
allowing the government and other organizations to choose for us
B.
sacrificing one thing for another.
C.
deciding who consumes the products produced in an economy.
D.
holding other variables fixed.
【单选题】关于子宫内膜异位症的临床表现,下列描述错误的是
A.
以侵犯卵巢者最为常见
B.
妇科检查子宫多为前倾前屈位
C.
侵犯卵巢可形成巧克力囊肿
D.
继发性、进行性加重的痛经
E.
可造成不孕
【简答题】计算机病毒不能通过（ ）传播。
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