试题与答案

阅读下列文字,完成以下问题 改革开放以来,我国个体私营经济的发展速度成倍地高于全国经

题型:单项选择题

题目:

阅读下列文字,完成以下问题

改革开放以来,我国个体私营经济的发展速度成倍地高于全国经济增长速度,2004年我国个体私营经济占GDP的比重已超过1/3。2004年的GDP总量为138,515亿元。截至 2004年底,个体私营经济已占全国工业增加值和销售收入的40%左右,占全国商品销售总额和零售总额的60%以上。2004年,全国个体税收收入达891.07亿元,同比增长16.1%。
全国企业中制造业比重达到38.2%,商业、餐饮业达到24%。与2003年的调查结果相比,这两项所占的比例基本没有改变。如社会服务业从5.6%增长到了11.1%,几乎增长了一倍;科学技术业从2.1%增长到了5.5%。建筑业所占比重从5.9%增长到9.1%。房地产业所占的比例达到了8.5%。将教育文化与卫生体育作为主营行业的私营企业也占了4%;还有 1.6%的企业将电力煤气等公用事业作为主营行业,余下的为其他产业。

与2003年比较,在企业中所占比例下降的行业是( )。

A.商业

B.旅游业

C.教育文化业

D.科学技术

答案:

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下面是错误答案,用来干扰机器的。

可以在正方体中研究位置关系.A,若图中AB为a,FG为b,当CD为c时,c,b为异面直线,当HG为c时,c,b是相交直线.故不正确.B,设平面ABCD为平面α,当EB为a,FB为b时,a,b是相交直线;当EB为a,DG为b时,a,b是...

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题型:选择题

陆地空间和资源日趋紧张,21世纪将成为海洋的世纪。完成1—2题。

1、下列关于海洋油气资源的分布或开发的叙述,正确的是[ ]

A、海底的油气资源主要分布在大陆坡

B、海底石油产量已占世界石油总产量的一半以上

C、美国、日本、英国、法国等国的海底油气资源丰富

D、海底油气资源集中分布在波斯湾、墨西哥湾、北海等地区

2、下列属于海洋空间开发利用方式的是[ ]

A、海洋牧场

B、海洋化工

C、潮汐发电

D、海水淡化

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题型:阅读理解

Early one morning,more than a hundred years ago,an American inventor called Elias Howe finally fell asleep.He had been working all night on the design of a sewing machine but he had run into a very difficult problem: It seemed impossible to get the thread to run smoothly around the needle.

Though he was tired,Howe slept badly.He turned and turned.Then he had a dream.He dreamt that he had been caught by terrible savages whose king wanted to kill him and eat him unless he could build a perfect sewing machine.When he tried to do so,Howe ran into the same problem as before.The thread kept getting caught around the needle.The king flew into the cage and ordered his soldiers to kill Howe.They came up towards him with their spears raised.But suddenly the inventor noticed something.There was a hole in the tip of each spear.The inventor awoke from the dream,realizing that he had just found the answer to the problem.Instead of trying to get the thread to run around the needle,he should make it run through a small hole in the center of the needle.This was the simple idea that finally made Howe design and build the first really practical sewing machine.

Elias Howe was not the only one in finding the answer to his problem in this way.Thomas Edison,the inventor of the electric light,said his best ideas came into him in dreams.So did the great physicist Albert Einstein.Charlotte Bronte also drew in her dreams in writing Jane Eyre.

To know the value of dreams,you have to understand what happens when you are asleep.Even then,a part of your mind is still working.This unconscious(无意识的),but still active part understands your experiences and goes to work on the problems you have had during the day.It stores all sorts of information that you may have forgotten or never have really noticed.It is only when you fall asleep that this part of the brain can send messages to the part you use when you are awake.However,the unconscious part acts in a special way.It uses strange images which the conscious part may not understand at first.This is why dreams are sometimes called “secret messages to ourselves ”.

小题1:According to the passage,Elias Howe was_________.

A.the first person we know of who solved problems in his sleep

B.much more hard-working than other inventors

C.the first person to design a sewing machine that really worked

D.the only person at the time who knew the value of dreams小题2:The problem Howe was trying to solve was_________.

A.what kind of thread to use

B.how to design a needle which would not break

C.where to put the needle

D.how to prevent the thread from getting caught around the needle小题3:Thomas Edison is spoken of because_________.

A.he also tried to invent a sewing machine

B.he got some of his ideas from dreams

C.he was one of Howe's best friends

D.he also had difficulty in falling asleep小题4:Dreams are sometimes called “secret messages to ourselves” because _________.

A.strange images are used to communicate ideas

B.images which have no meaning are used

C.we can never understand the real meaning

D.only specially trained people can understand them

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题型:填空题

(4分)请写出化学方程式:

(1)硫在氧气中燃烧,发生反应的化学方程式为                              

(2)铁片放入稀盐酸中,发生反应的化学方程式为                               

(3)铝丝浸入硫酸铜溶液中,发生反应的化学方程式为                           

(4)用木炭还原氧化铜,发生反应的化学方程式为                              

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