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【单选题】
格林尼亚试剂简称“格氏试剂”，它是卤代烃与金属镁在无水乙醚中作用得到的，如：CH 3 CH 2 Br＋MgCH 3 CH 2 MgBr，它可与羰基发生加成反应，其中的“—MgBr”部分加到羰基的氧上，所得产物经水解可得醇。今欲通过上述反应合成2－丙醇，选用的有机原料正确的一组是A.
氯乙烷和甲醛
B.
氯乙烷和丙醛
C.
一氯甲烷和丙酮
D.
一氯甲烷和乙醛
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举一反三
【多选题】20世纪80年代以来，随着改革开放，国际学术交流日益频繁，西方先进的理论引入我国，它们包括：（）。
A.
皮亚杰的儿童发展理论
B.
弗洛伊德的精神分析理论
C.
巴班斯基的教学过程最优化
D.
布朗芬布伦纳的人类发展生态学
E.
杜威实用主义教育理论和儿童中心主义
【单选题】If the covered interest differential is zero, ( )
A.
International investments will be unprofitable.
B.
Parity has not been reached.
C.
The overall covered return on a foreign-currency investment equals the return on a comparable domestic-currency investment.
D.
A currency is at a forward premium by as much as its interest rate is higher than the interest rate in the other country.
【简答题】利率抛补套利关系(covered interest arbitrage relationship)
【单选题】If the covered interest differential is zero, then:
A.
covered international investments will be profitable once we add in the interest earned on the foreign bonds.
B.
covered interest rate parity has not yet been reacheD.
C.
the overall covered return on a foreign-currency investment equals the return on a comparable domestic-currency investment.
D.
a currency is at a forward premium by as much as its interest rate is higher than the interest rate in the other country.
【简答题】抵补利率平价(covered interest—rate parity)
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