试题与答案

A terrible terrorist attack at the train

题型:选择题

题目:

A terrible terrorist attack      at the train station in Kunming, on March 1, 2014      29 death and more than 140 injuries.

A.occurred; caused

B.happened; caused

C.occurred; causing

D.happened; to cause

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B, C解析:套期保值的基本做法有两种:①持有现货空头,买入期货合约;②持有现货多头,卖出期货合约。

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