小明作业本上有以下四道题目：①，②；③；④，其中做错的题是[]A.①B.②C.③D.④-九年级数学

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• 化简的结果是（）。-九年级数学
• 计算：-八年级数学
• 计算：-八年级数学
• ---The window must have taken you quite a lot of time that day. --- You are right. They ________ for
• -Why can’t I smoke here? --At no time__________ in the dormitory.A．is smoking permittedB．smoking is
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• Two years has passed since I ______you the first time．A．meetB．have metC．metD．had met-高三英语
• 计算：﹣（+）-八年级数学
• Don’t call me at three to four o’clock this afternoon. I the patient at that time.A．am treatingB．hav
• 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
• Their wages ____by a full third in the past two years.A had gone down B would go downC have gone dow
• 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
• This kind of storiesinstructive while stories of that kindharmful to children.A．is; seemsB．are; seem
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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
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• 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
• ―Iguessyouwereinahurry.Look! You_______ yoursweaterinsideout.A．hadwornB．woreC．arewearingD．werewearin
• 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
• —It is the first time that I ________ here in Hong Kong.—What great changes！It’s ten years since I _
• 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