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【单选题】
当a=-2，b=3时，|a|+|b|= [ ]A.
-1
B.
5
C.
1
D.
-5
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举一反三
【单选题】Red Hat Enterprise Linux系统默认使用的Shell程序是( )。
A.
/bin/bash
B.
/bin/sh
C.
bin/tcsh
D.
/bin/zsh
【简答题】C If you could give anything in the world to your child， you might want to give a love of words. Young children who can express their feelings don ' t have as many temper tantrums (发脾气) . They also le...
【简答题】(5分)“具有较高细胞液浓度的细胞,与外界较低浓度的溶液接触时便会发生吸水”这句话正确吗?为什么?
【简答题】请结合下图所示回答:(1)该机构的名称。(2)工作原理。(3)该机构的作用、特点及适用范围。
【单选题】听力原文：M: What do you mean by a friend, Jean? W: Oh, Robert, to me, friendship is the most important thing in life. It's more important even than love. If you love someone, you can always fall out of lo...
A.
Those who like the same things that you do.
B.
Those who you can argue and not lose your temper.
C.
Those who you don't have to talk to all the time but can be silent with.
D.
All the above.
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