计算：﹣（+）-八年级数学

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• 计算：（1）；（2）。-九年级数学
• 的结果是[]A.B.C.D.2-九年级数学
• 计算：。-八年级数学
• 计算：。-九年级数学
• 下列根式中能与合并的二次根式为[]A.B.C.D.-九年级数学
• Ever since the financial crisis ________, many workers _______from their jobs.A．broke out; were laid
• 已知a＜0，则等于[]A、-2aB、2aC、4aD、-4a-八年级数学
• Look ! The building which _________now will be used as a library.A．is being builtB．to be builtC．is b
• E-mail , as well as cellphones, _____an important part in daily communication.A．have playedB．playC．a
• 计算：-八年级数学
• ---It was Sunday today, and I _______ up very early. ---So you really had a good rest.A．didn’t need
• 下列计算正确的是[]A．B．（a+b）2=a2+b2C．（﹣2a）3=﹣6a3D．﹣（x﹣2）=2﹣x-九年级数学
• 计算：-八年级数学
• 计算：（1）；（2）；（3）已知2x-y的平方根为±4，-2是y的立方根，求-2xy的平方根。-八年级数学
• – May I go to the movies tonight, mum? -- You can when you ____ your homework.A．will finishB．are fin
• 计算的结果是[]A.-B.C.D.-九年级数学
• 化简：-八年级数学
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• In a word, I don’t think what you said____sense at all.A．makeB．makesC．is makingD．has made-高二英语
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• 化简：。-八年级数学
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• -九年级数学
• 计算：（1）；（2）。-八年级数学
• I know a little bit about the city as I __________ there for one year in my youth.A．am studyingB．had
• ---I have got a headache．----No wonder ．You _______in front of that computer too long ．A．work B．are
• He _______ in a university for five years, but now he runs a company of his own.A．has taughtB．had ta
• 计算：2-=[]A.5B.3C.-3D.-1-九年级数学
• 计算：-八年级数学
• A library with five thousand books ____________ to the nation as a gift.A．have offeredB．are offeredC
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• 计算：-八年级数学
• （1）计算：；（2）求x的值：3（x-1）3+24=0。-八年级数学
• 计算：。-八年级数学
• 计算：（1）；（2）。-八年级数学
• 计算：=（）。-八年级数学
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• 计算-八年级数学
• 下列各运算中，错误的个数是30+3-1=-3；②；③（2a2）3=8a5；④-a8÷a4=-a4[]A、1B、2C、3D、4-九年级数学
• The father as well as his daughters _____ skating on the freezing river every Sunday afternoon.A．goB
• Have you nearly finished? Time_______.A．is run outB．has been run outC．is running outD．has run out of
• 当1＜x＜3时，化简的结果是[]A、4-2xB、2C、2x-4D、4-八年级数学
• —The windows are dirty.—I know. They _________ for weeks.A．haven’t cleanedB．didn’t cleanC．weren’t cl
• 化简：+（5-）=（）。-九年级数学
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• Having been walking for nearly an hour , I ______ a good sleep in bed . A．am dying forB．am dying toC
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• 计算：。-八年级数学
• 计算下列各题：（1）+=（）；（2）=（）；（3）=（）；（4）+|﹣2|﹣÷（﹣）×=（）。-八年级数学