当有汞(水银)溅失时,应如何处理现场()A.用水擦B.用拖把拖C.扫干净后倒入垃圾桶

题型:单项选择题

问题:

当有汞(水银)溅失时,应如何处理现场()

A.用水擦

B.用拖把拖

C.扫干净后倒入垃圾桶

D.收集水银,用硫磺粉盖上并统一处理

考点:高校实验室安全考试化学化学题库
题型:单项选择题

根据短文内容和所给首字母补全短文.

    Weather is a common topic (普通的话题) for the English. In England, p  1    don't usually talk much. When they get on a bus or a train, they just sit, looking o  2   of the window. Often they  r_3_   some

newspapers and b  4   . But they don't talk. When you meet E  5    people, you may find they often talk a  6    one thing — the weather. You can say," Nice w   7   for the time of the year!" Somebody may

answer, "B  8     it is a little cold today." You can say, "It will be a bit w   9   soon." T  10   like this, and

the English will think you are friendly.

题型:单项选择题

下列哪项不属于输出设备()

A.显示器

B.打印机

C.投影仪

D.扫描仪

题型:单项选择题

在复利计算和考虑资金时间因素的计算时,i为每个计息周期的利率,n为计息周期数,则一次支付的现值系数是( )。

A.1/(1+n

B.(1+n-1/i

C.(1+n

D.i(1+n/(1+n-1

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下图是沿200N纬线所作的地形剖面示意图。读图回答下题。

关于甲、乙两地形区的叙述,正确的是()

A.均位于印度洋板块

B.均为重要的石油产地

C.河流水位季节变化均较小

D.外力作用均以流水作用为主

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经台盼蓝染色后,活细胞呈()

A.红色

B.不着色

C.天青色

D.蓝色

E.紫色

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