一个正方形和一个圆的周长相等,正方形的边长是3.14厘米,求圆的面积。

题型:解答题

问题:

一个正方形和一个圆的周长相等,正方形的边长是3.14厘米,求圆的面积。

考点:圆的面积
题型:解答题

2002年某省城镇居民人均消费性支出为8988元,比1995年增加2735元,扣除物价因素,实际增长35.8%,年均增长5.1%;农村居民人均生活消费支出2002年为2825元,比1995年增加570元,扣除物价因素,实际增长23.2%,年均增长3.0%。城镇居民人均用于食品支出由1995年的3003元提高到2002年的3460元,增加457元。2002年农民人均食品消费为1345元,比1995年增长9.5%。城镇居民人均衣着消费由1995年的422元,增加到2002年的491元,农村居民人均用于衣着消费为108元,比1995年的91元增长18.7%。2002年城镇居民人均居住消费986元,比1995年的661元增长的49%,人均住房使用面积为24.5平方米,比1995年增长16.6%。农村居民2002年人均用于居住消费441元,比1995年增长27.7%;人均居住面积24.1平方米,增长15.5%。城镇居民用于交通和通讯支出比重由1995年的6.3%上升到2002年的14.2%,人均支出额由1995年的396元增加到2002年的1273元,增长2.2倍,平均每年以18.2%的速度递增。2002年农村居民人均交通通讯消费251元,比1995年的82元增长2.1倍。城镇居民用于娱乐文教人均支出额由684元增加到1386元,增长1倍多,年均递增10.6%。在医疗保健支出方面,城镇居民人均用于医疗保健的支出额不断增加,由1995年的205元增加到2002年的501元,增长1.4倍,年均增幅达13.5%。农村居民人均用于文化教育娱乐的总支出1995年为245元,2002年为302元,增长23.4%。农村居民人均医疗保健消费支出1995年为68元,2002年为117元,增长72%,年均增长8.1%。

根据原文,下列哪一消费领域的差距最可能是导致城乡居民的恩格尔系数(食品消费占总消费支出的比重)进一步扩大的原因?()

A.衣着消费

B.居住消费

C.交通和通讯支出

D.娱乐文教支出及医疗保健支出

题型:解答题
阅读理解。
     Going to Disneyland is a dream vacation for kids. You may have been to the
Disney-land in Hong Kong Or in other places. Soon you will be able to enjoy a Disney
Park in Shanghai. Shanghai Disneyland started building on April 8, 2011. There will be
many Chinese characters in Shanghai Disneyland, It is different from the Others. There
is a 10-kilometer-long river. It goes around the whole park. Shanghai Disneyland will
cost 24. 4 billion yuan to build. It will open in five years.

     In order to keep the road safe, European Commission (欧盟) says that buses and
taxis can be fitted (安装) with "black boxes". The black boxes can help police to find
what happened after an accident.

     Some robots will soon be used to carry medical rubbish, pass, food and give out medicine at a UK hospital. The newest technology(技术) is already in hospitals in
Japan, the US and France.

     A village in eastern Germany doesn't have enough money to repair the holes in
the road. So they sell the holes to the people in the village. Each hole is $ 68. The
government will repair them with the money and put a message on top of each hole
to remember the buyers. It's a funny idea. Most buyers just want to do some good
things to the society. However, some TV stations and newspapers buy some holes
just to make more money from
1. Which of the following is TRUE to Shanghai Disneyland?
A. A 10-kilometer-long river goes in the middle of the park.
B. There will be many Chinese characters.
C. It is the same as the others.
D. It opened 5 years ago.
2. In order to keep the road safe, European Commission wants to ______.
A. make buses and taxis go slowly
B. fit buses and taxis with "black hones"
C. make the police find out what happened
D. find out what "black boxes" can do
3. The robots will ______  in a UK hospital.
A. carry medical rubbish
B. give out newspapers
C. cook dinner
D. water flowers
4. TV stations and newspapers buy the holes because ______.
A. the roads have been broken badly
B. they want to have their own holes
C. they want to make more money
D. the government doesn't have enough money
题型:解答题

在修理中如何判断螺纹的规格及其各部尺寸?

题型:解答题

2009年部门支出预算核定的原则为()。

A.厉行节约原则

B.定员定额原则

C.综合预算原则

D.重点保障原则

题型:解答题

对外劳务合作风险处置备用金使用后,对外劳务合作企业应当自使用之日起()个工作日内将备用金补足到原有数额。

A.10

B.15

C.20

D.25

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