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【多选题】
满足消费者基本需要的设计策略包括A.
使用优化策略
B.
性能提高策略
C.
功能多样化策略
D.
人体力学策略
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举一反三
【单选题】When a nation first begins to trade with other countries and the nation becomes an importer of corn,
A.
this is an indication that the world price of corn exceeds the nation’s domestic price of corn in the absence of trade.
B.
this is an indication that the nation has a comparative advantage in producing corn.
C.
the nation’s consumers of corn become better off and the nation’s producers of corn become worse off.
D.
All of the above are correct.
【单选题】My father has often________me________when I've been a bit short of money. [ ]
A.
sent; out
B.
driven; off
C.
helped; out
D.
pulled; in
【单选题】When he ______, tell him that I've already left.
A.
has come
B.
came
C.
comes
D.
will come
【单选题】When a nation has very little GDP per person,
A.
it is doomed to being relatively poor forever.
B.
an increase in capital will likely have little impact on output.
C.
it has the potential to grow relatively quickly due to the "catch-up-effect."
D.
it must be a small nation.
【单选题】某投机者预测5月份大豆期货合约价格将上升，故买入10手(10吨)大豆期货合约，成交价格为2030元/吨。可此后价格不升反降，为了补救，该投机者在2000元/吨再次买入5手合约，当市价反弹到( )元/吨时才可以避免损失。(不计税金、手续费等费用)
A.
2010
B.
2015
C.
2020
D.
2025
【单选题】If a nation has an open economy, it means that the nation:
A.
Allows private ownership of capital
B.
Has flexible exchange rates
C.
Has fixed exchange rates
D.
Conducts trade with other countries
【单选题】When a nation first begins to trade with other countries and the nation becomes an exporter of soybeans,
A.
this is an indication that the world price of soybeans exceeds the nation’s domestic price of soybeans in the absence of trade.
B.
this is an indication that the nation has a comparative advantage in producing soybeans.
C.
the nation’s consumers of soybeans become worse off and the nation’s producers of soybeans become better off.
D.
All of the above are correct.
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