2011年9月9日,国家统计局权威发布:8月份全国居民消费价格总水平(CPI)同

题型:选择题

问题:

2011年9月9日,国家统计局权威发布:8月份全国居民消费价格总水平(CPI)同比上涨6.2%,其中食品价格上涨13.4%。如果居民的消费水平不变,则我国CPI上涨,意味着[ ]

①城乡居民收入下降   ②恩格尔系数增加  ③人民币贬值  ④人民币升值

A.①②             

B.①③             

C.②③             

D.③④

考点:纸币(货币流通规律与纸币发行规律的关系、通货膨胀与通货紧缩、爱护人民币、电子货币)
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---Excuse me, sir. Is the swimming pool open all day?

---     . Only from 6:00 pm to 10:00 pm.

A.That’s night

B.Yes, of course

C.Sorry, I am not sure

D.Sorry, I’m afraid not.

题型:选择题

下列有关实验操作、发生的现象、解释或结论都正确的是(  )

 选项 实验操作发生现象 解释或结论 
 A 向NaCl和KI的混合溶液中,逐滴加入AgNO3溶液 溶液中先产生白色沉淀,后产生黄色沉淀 Ksp(AgCl)<Ksp(AgI)
 B 用玻璃棒蘸取氯水点到蓝色石蕊试纸上 试纸先变红后褪色 氯水中含有H+和HClO
 C 将铜片与芯片用导线连接后,插入稀硫酸中 铜片上有气泡产生 在锌的作用下,铜与硫酸反应产生氢气
 D 向某溶液中加入过量盐酸 产生能使澄清石灰水变浑浊的无色气体 该溶液为Na2CO3

A.A

B.B

C.C

D.D

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Feeling blue about world ? “Cheer up.” Says science writer Matt Ridley.”The world has never been a better place to live in, and it will keep on getting better both for humans and got nature.”

Ridley calls himself a tat ional optimist—tactical .because he’s carefully weighed the evidence optimistic .because that   offence shows human progress to be both unavoidable and good .And this is what he’s set out to prone from unique point of view in his most recent book. The Rant anal Opting  .He views mankind as grand enterprise that .on the whole .has done little but progress for 100.000 years. He backed his finding with hard gathered though years of research.

Here’s how he explains his views.

Shopping fuels invention

It is reported that there are more than ten billion different producers for sale in London alone. Even allowing for the many people who still live in poverty .our own generation has access to more nutritious food .more convenient transport .bigger houses, better ears .and of course, more pounds and dollars than any who lived before us .This will continue as long as we there things to make other things, This more we specialize and exchange, the better off we’ll be.

2) Brilliant advances

One reason we are richer, healthier, taller, cleverer, longer-lived and freer than ener before is that the four most basie human needs -food, clothing, fuel and shelter- have grown a lot cheaper. Take one example. In 1800 a candle providing one hour’s light cost six hours’ work. In the 1880s the same light from an oil lamp took 15 minutes’ work to pay for. In 1950 it was eight seconds. Today it’s half second.

3) Let’s not kill ourselves for climate change

Mitigating(减轻) climate change could prove just as damaging to human welface as climate change itself. A child that dies from indoor smoke in a village, where the use of fassil-fuel(化石燃料) electrieity is forhidden by well meaming members of green polucal movements trying to save the world, is just as great a tragedy as a child that mes in a flood caused by climate change. If chmaic change proves to be xxxx, but cutting carbon canses realparn, we may well find that we have stopped a nose bleed by putting a tournquet(止血带) around our necks.

小题1:What is the theme of Ridley’s most recent book?

A.Weakness of human nature.

B.Concern about climate change.

C.Importance of practical thinking.

D.Optimism about human progress.小题2:How does Ridley look at shopping?

A.It encourages the creation of things.

B.It results in shortage of goods.

C.It demands more fossil fuels.

D.It causes a poverry problem.小题3:The candle and lamp example is used to show that     .

A.oil lamps give off more light than candles

B.shortening working time brings about a happier life.

C.advanced technology helps to produce better candles.

D.increased production rate leads to lower cost of goods.小题4:What does the last sentence of the passage imply?

A.Cutting carbon is necessary in spite of the huge cost.

B.Overreaction to cliamate change may be dangerous.

C.People’s health is closely related to climate change.

D.Careless medical treatment may cause great pain.

题型:选择题

测速管测量得到的速度是流体()速度。

A.在管壁处

B.在管中心

C.瞬时

D.平均

题型:选择题

水泥混凝土路面检测的强度是指( )。

A.抗压强度
B.弯拉强度
C.抗减强度
D.劈裂强度

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