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【多选题】
极端温度对植物的影响主要包括哪几方面?A.
极端高温
B.
极端低温
C.
生物学温度
D.
平均温度
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举一反三
【简答题】To trade _____ the people of all countries _____ the basis of equality and mutual benefit is our established policy.
【简答题】When entering a new culture, the problems people face are______.
【单选题】What basic problem are we told most trade unions face?
A.
They are equal in size of influence.
B.
They are less powerful than ever before.
C.
They don't have enough members.
D.
They are not organized efficiently.
【单选题】For two people who are planning to trade, it is impossible to
A.
have a comparative advantage in both goods.
B.
have an absolute advantage in both goods.
C.
specialize in the production of one good.
D.
trade so that both people will be better off.
【简答题】何谓高钾血症？试述高血钾对心脏的影响。
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