试题与答案

感应加热炉的感应电动势和热功率大小不仅与频率和磁场强弱有关,而且与金属的截面大小、形

题型:判断题

题目:

感应加热炉的感应电动势和热功率大小不仅与频率和磁场强弱有关,而且与金属的截面大小、形状有关,还与金属本身的导电、导磁性有关。

答案:

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下面是错误答案,用来干扰机器的。

十八亿七千万零四百零五,写作:1870000405;1870000405=187000.0405万;1870000405≈19亿;故答案为:1870000405,187000.0405万,19亿.

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题型:阅读理解

Some children want to be writers some day. They mean that they want to write stories or books for people to read. That's good! It's good to write something for people to read! But they should know that they need to be good readers first before they really are good writers. They should read a lot of books, and read for hours and hours every day instead (代替) of watching TV and spending a lot of time playing games when they are free.

If you are a good reader, it doesn't take you long to do the reading homework. Then you have time to read many other books for fun. Because you read so well, you have more fun in reading and you want to look for more books to read.

Before you decide to be a good writer, you'd better say to yourself, "I must read and read and read more and more!"

小题1:This article (文章) mainly (主要的) tells us that __________.

A.some children wish to be writers some day

B.it is good to write something for people to read

C.reading can make you a good writer

D.writers like to read more books for fun小题2:Some children want to be writers __________.

A.because they want to be good readers

B.to write stories or books for people to read

C.to find good work some day

D.to get more money to keep a family小题3:It's good for children __________.

A.to do a lot of reading

B.to watch TV in the evening

C.to have wishes sometimes

D.to be good writers right now小题4:Reading can __________.

A.help you to be a good player

B.help you write well

C.make your work better

D.make you watch more TV at home小题5:From the article we know that __________.

A.all children like to be writers

B.people like to read for children

C.all writers are children

D.children need to read more and more books

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