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【简答题】
Perhaps you have heard a lot about the Internet, but what is it?The internet is many different networks around the world. A network is a group of computers put together. Maybe that doesn’t sound interesting. But when we’ve joined the internet, there are lots and lots of things wecan do. We can have a lot of interest on the World Wide Web (WWW). We can use the Internet instead of a libraryto find all kinds of information for our homework. We can find information about our favorite sports or film starsand do shopping on the Internet. We can also send messages to other people by e-mail. It is much cheaper and quicker than calling our friends or sending a letter. Thanks to the Internet, the world is becoming smaller and smaller. People can now work at home with a computer in front, getting and sending the information they need. They can buy or sell whatever they want by the Internet. But do you know 98% of the information is in English? So what will English be like tomorrow? 小题1:The passage is mainly about _________________. A.the Internet B.information C.computers D.e-mail 小题2:The quickest and cheapest way for people to send massages to their friends is _________. A.by post B.by e-mail C.by telephone D.by TV 小题3:The Internet can not be used to ________________. A.find information for our home work B.get some information about our favorite sports stars C.do some shopping D.do our housework 小题4:Which of the following is NOT true? A.The Internet is a big computer. B.The Internet is lots of computer network C.The Internet is very helpful. D.People can work at home with the help of the Internet. 小题5:What does the writer try to tell us with the last two sentences? A.The Internet is more and more popular. B.All the information is in English. C.English is important in using the Internet. D.Every computer must join the Internet.
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A.
after
B.
account of
C.
advantage of
D.
back
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焊缝金属的稀释
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B.
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C.
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焊缝金属的稀释
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过渡层的形成
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焊接接头产生晶间腐蚀
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焊接接头高应力状态
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扩散层的形成
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正确
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焊缝金属的稀释
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C.
扩散层的形成
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