电炉工作时消耗电能得到______ 能，这个现象叫做电流的_______ 效应。

对话填空（满分 10分） 阅读下面对话,掌握其大意,并根据所给首字母的提示,在标有题号的右边横线上写出一个英语单词完整、正确形式，使对话通顺。

W: Tell me, Jack. Do you look t   小题1:  the Web much?

M: Well, to tell you the t小题2:  , I’m so busy with work. I don’t really have much time to s  小题3:     the Web. Let me think…I s    小题4:    I log on a couple of times a week, for about two or three hours.

W: So, What do you do o  小题5:   the Internet when you log on?

M: Well, I do a little e-mailing. I only get about two or three e-mails a week. Actually I p    小题6: writing real letters, with pen and paper.

W: Yeah, I’m the same way. Anything e   小题7:      you do on the Internet?

M: Well, sometimes I look up i   小题8: I need for my job. It s  小题9:    a lot of time looking through books in libraries.

W: Yes, it sure d  小题10:   

以下作品不是莫泊桑的代表作品的是( )。

A．《羊脂球》

B．《俊友》

C．《我的叔叔于勒》

D．《麦琪的礼物》

—We don't know _____________.  

—It is said that he was born in Sweden.  [ ]

A. what he is              

B. if he lives here  

C. where he comes from        

D. which country is he from

常用的5.25英寸软盘片若标有96TPI表明是360MB的软盘。

互补基因