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问题 单项选择题

涉密计算机需送外部做数据恢复时，必须到由（）进行，并将废旧的涉密计算机收回。

A.单位信息中心

B.上级单位信息中心

C.外包单位

D.国 * * 密工作部门指定的具有保密资质的单位

答案

参考答案：D

填空题

单词拼写

1. He was _________ (徘徊) around the pyramid, wondering how on earth this wonder was built.

2. He gave his son some money for the             (购买)of his school books.

3. They'll be here soon.            (在此期间), let's have coffee.

4. The government has threatened to get        (强硬的)with people who try to avoid paying taxes.

5. The young actress is very            (谦虚的)about her success; she says it's as much the result of good

luck as of her own talent.

6. The passage is about Jobs' love letter to his wife written on their 20th wedding a         .

7. We received warm reception by our h           host family in Korea.

8. We cannot g     the punctual arrival of trains to the passengers in foggy weather.

9. I'd like to take this o           to thank my colleagues for their support.

10. Many companies are s________ from a lack of skilled staff.
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选择题

下列离子方程式书写正确的是 （　　）

A．氢氧化钡溶液与明矾溶液混合，Ba2+刚好完全沉淀：

3Ba2++60H-+2Al3++3SO42-=3BaSO4↓+2Al（OH）3↓

B．AgNO3溶液中加入过量氨水：Ag++NH3•H2O=AgOH↓+NH4+

C．FeBr2溶液中按物质的量之比1：1通入Cl2：2Fe2++2Br-+2Cl2=2Fe3++Br2+4Cl-

D．向Ca（ClO）2溶液中通入二氧化硫：Ca2++2ClO-+SO2+H2O=CaSO3↓+2HClO
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