In 2000, a DNA test found the murder immed

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问题:



In 2000, a DNA test found the murder immediately. True False

考点:翻译专业资格考试翻译三级口译(综合能力)翻译三级口译综合能力
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某固体可能含有Ca(OH)2、Na2SO4、Na2CO3、FeCl3、KCl中的一种或几种,现对其进行如下实验:

①取少量固体于试管中,加适量蒸馏水,固体完全溶解成无色透明溶液

②取少量上述溶液,加过量稀硫酸,有气泡产生

③取②所得溶液少量,滴加BaCl2溶液,产生白色沉淀

分析以上实验现象,对原固体组成进行推断:一定有______,一定没有______.若要对原固体中可能存在的物质进行鉴别,则取①所得溶液少许,加入______,如果出现白色沉淀,说明有______.

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阅读理解

     Sir Richard Branson today offered a $25,000,000 prize for scientists who find a way to save the

planet from the effects of climate change.

    Supported by the former US vicepresident Al Gore and other environmentalists, the boss of Virgin

Atlantic airlines called for scientists to come up with a way to take greenhouse gases out of the

atmosphere.

     "What we are doing is making sure we get the most carbon dioxidefriendly planets.We promise that

100% of profits we make from our transportation business are put into things like the prize we've offered

today.We shall convince people that we are facing a threat which is urgent and there's no superhero.We

have no hope of a meaningful solution unless we find a way to work together."he said.

    Mr Gore said global warming was manmade and was like the planet suffering from a"fever". He said,

"Humans had slipped into a way of thinking that was centered on'short term satisfaction', and now meet

the challenge of 'transforming ourselves and changing the structures of everything we do'".

     Reacting to the launch of the prize, Tony Jupiter, the Friends of the Earth's director, warned against

wasting time waiting for new inventions.He said, "Sir Richard's initiative (初衷) may encourage inventors

to develop a wonder technology to deal with carbon dioxide of the atmosphere.But many of the ways,

such as energy efficiency and renewables, already exist, and it is essential that these be put into practice

as soon as possible.Moreover, Sir Richard must also look at his business activities and the contribution

they make to climate change.The world will find it very difficult to settle climate change if air travel

continues to expand and space tourism is developed."

1. Sir Richard Branson is________.

A. a scientist concerned for climate change

B. a businessman working for Al Gore

C. the boss of Virgin Atlantic airlines

D. the director of the Friends of the Earth

2. The purpose of using Al Gore's quotation was to________.

A. ask people to change the way of thinking

B. compare global warming to an Earth's fever

C. show how serious and urgent the problem is

D. call for more attention to the launch of the prize

3. What is the main idea of the passage?

A. It is important for people to save our planet.

B. Humans are to blame for causing climate change.

C. Scientists are trying to take carbon dioxide out of the atmosphere.

D. A prize was offered for solutions to global warming.

4. How was Tony Jupiter's attitude to space tourism?

A. Negative.                

B. Positive.

C. Optimistic.              

D. Neutral(中立).

题型:单项选择题

存款准备金政策是近年来我国比较常用的货币政策,它属于()。

A.选择性货币政策

B.一般性货币政策

C.直接信用控制工具

D.间接信用控制工具

题型:单项选择题

请分析影响计算机控制正常运转的因素有哪些。

题型:单项选择题

( )有权确定土地承包经营权流转的转包费、租金、转让费等。

A.当事人双方
B.发包方
C.承包方
D.村民会议

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