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问题 单项选择题

依据《期货交易管理条例》规定，指定交割仓库的是()。

A．中国证监会

B．期货交易所

C．期货公司

D．客户

答案

参考答案：B

解析：根据《期货交易管理条例》第三十九条第二款规定，交剖仓库由期赍交易所指定。

单项选择题

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A．version
B．revision
C．software D book
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问答题

在石灰水中滴入几滴酚酞试液，溶液呈______色；把此显色的溶液在空气中久置后，为什么溶液的颜色又会消失变成无色？______．
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