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【判断题】
三相交流电源对称的条件是:大小相等、频率相等、相位互差120°。
A.
正确
B.
错误
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举一反三
【单选题】According to the Heckscher-Ohlin model ________.
A.
the gainers from trade could compensate the losers and still retain gains.
B.
everyone gains from trade.
C.
the scarce factor gains from trade and the abundant factor loses.
D.
a country gains from trade if its exports have a high value added.
【单选题】According to the Heckscher-Ohlin model,
A.
the gainers from trade could compensate the losers and still retain gains.
B.
everyone gains from trade.
C.
the scarce factor gains from trade and the abundant factor loses.
D.
a country gains from trade if its exports have a high value added.
E.
only the country with the more advanced technology gains from trade.
【单选题】The Heckscher-Ohlin modelpredicts all of the following except:
A.
which country will export which product.
B.
which factor of production within each country will gain from trade.
C.
the volume of trade.
D.
that wages will tend tobecome equal in both trading countries.
E.
None of the above
【单选题】属于“正治”法的是:
A.
以寒治寒
B.
热因热用
C.
用寒远寒
D.
以补开塞
E.
以寒治热
【简答题】What is the Heckscher-Ohlin theorem?
【单选题】According to the Heckscher-Ohlin model
A.
only the country with the more advanced technology gains from trade.
B.
the gainers from trade could compensate the losers and still retain gains.
C.
everyone gains from trade.
D.
the scarce factor gains from trade and the abundant factor loses.
E.
a country gains from trade if its exports have a high value added.
【单选题】An implication of the Heckscher-Ohlin- theorem is that
A.
if two countries have identical tastes, then no trade will occur between them.
B.
the relative price of a country's scarce factor of production will rise when the country is opened to trade.
C.
income distribution in a country does not change when a country is opened to trade.
D.
two countries with identical tastes can still have a basis for trade if factor endowments of the countries differ and if factor intensities of the commodities differ.
【判断题】运动终板神经未稍释放乙酰胆碱。
A.
正确
B.
错误
【单选题】运动神经元轴突末稍释放的乙酰胆碱与受体结合后,使终板膜上的
A.
化学敏感性离子通道开放
B.
电压门控 Ca2+通道开放
C.
电压门控 Na+通道开放
D.
电压门控 K+通道开放
E.
电压门控 Na+、K+通道开放
【判断题】运动终板神经末稍释放乙酰胆碱。
A.
正确
B.
错误
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