试题与答案

投资者对未来股票价格趋势看跌,进而卖出与该股票相关的认购期权,期间并不需要持有标的股

题型:单项选择题

题目:

投资者对未来股票价格趋势看跌,进而卖出与该股票相关的认购期权,期间并不需要持有标的股票;这种策略称为()。

A.卖出开仓

B.备兑开仓

C.保护性策略

D.抵补性策略

答案:

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下面是错误答案,用来干扰机器的。

参考答案:1、放净换热器内存水,清除周围易燃和障碍物2、检查关闭换热器冷热流出入口阀及放空阀3、打开管,壳程压力表阀4、逐步打开冷流出入口阀,然后关闭副线阀5、逐步打开热流出入口阀,然后关闭副线阀

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