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【单选题】
裸子植物世代交替的突出特点为( )A.
孢子体占优势
B.
孢子体具有根茎叶的分化
C.
配子体结构简化，寄生在孢子体上
D.
种子为“三世同堂”
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举一反三
【单选题】What may happen to computer criminals once they are caught? 查看材料
A.
With a bad reputation they can hardly find another job．
B.
They may walk away and easily find another job．
C.
They will be denied access to confidential records．
D.
They must leave the country to go to jail．
【单选题】6-4. 一台工作于温度分别为327 °C 和27 °C 的高温热源与低温热源之间的卡诺热机,每经历一次循环吸热2000J,则对外界 做功( )。
A.
2000J
B.
1000J
C.
4000J
D.
500J
【单选题】听力原文：W：Some people complain that once they are in front of the computer，they would get totally lost．It is so difficult to learn to operate the computer． M：It is not that frightening．Once they started ...
A.
It is difficult to operate computers.
B.
It is frightening if the computer loses control.
C.
Trying more makes an easy job to operate computers.
D.
People get lost in front of the computer.
【判断题】A genre popular and now still popular with children, fantasy, appeared in the 1760s.
A.
正确
B.
错误
【判断题】Pop music is actually a genre of popular music, which derived from rock and roll.
A.
正确
B.
错误
【判断题】Pop music is actually a genre of popular music, deriving from rock and roll.
A.
正确
B.
错误
【单选题】The electronic computer is ______some of the tasks that were once accomplished by our own brains.
A.
taking on
B.
taking over
C.
taking off
D.
taking in
【单选题】The electronic computer is ______ some of the tasks that were once accomplished by our own brains.
A.
taking care
B.
taking in
C.
taking off
D.
taking over
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