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问题 判断题

某矿山开采铜矿50000吨，本月销售了铜矿石20000吨，又使用了一部分原矿选出精矿 5000吨，选出的精矿本月销售了4500吨。已知选矿比为20%，资源税为每吨10元。矿山本月应纳资源税为31.5万元。( )

答案

参考答案：对

解析： 计算过程：(20000+5000÷20%)×10×70%＝315000(元)。

完形填空

“低碳生活，从我做起！”请仔细阅读下列材料，找出以下五种“低碳”行为产生的直接效应。

小题1:Henry often recycles(循环利用) water to clean his room and water the flowers.

小题2:Daphne always turns off the lights and the computer as soon as she leaves her office.

小题3:Mr. White sometimes goes to work by bus or on foot instead of (代替)driving his car.

小题4:Li Lei usually uses QQ or emails to communicate with his friends instead of paper letters.

小题5:Miss Zhang never wears fur(皮草) clothes and she decided to eat less meat.

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单项选择题

以下可视为癫痫持续状态的一项是( )

A．癫痫发作或反复发作30分钟

B．癫痫发作或反复发作15分钟

C．癫痫发作或反复发作20分钟

D．癫痫发作或反复发作10分钟

E．癫痫发作或反复发作35分钟
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