4kg1211灭火器射程为（）。A.3米 B.4．5米 C.5米

发布时间：2017-04-10 11:28 │ 来源：www.tikuol.com

题型：单项选择题

问题：

4kg1211灭火器射程为（）。

A.3米

B.4．5米

C.5米

考点：催化重整装置操作工催化重整装置(中级工)催化重整装置(中级工)题库

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在日常生活中，我们常会看到类似这样的通告：“由于检修线路，今天上午七点至下午五点停电．”这里所提到的“电”是指下列物理量中的（　　）

A．电流

B．电阻

C．电热

D．电功率

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股市低迷时，资金流向购买国债；股市上升时，资金流向购买股票。债券与股票的共同点是（）。

A.它们都是有价证券.都是能获得一定收益的金融资产

B.都是承诺在一定时期内支付约定利息并到期偿还本金

C.债券以定期收取利息为条件，其安全性比股票大

D.股票具有明确的付息期限.其收益比债券大

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题型：单项选择题

完形填空。

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