化简=_________-九年级数学

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• 将1、、、按右侧方式排列．若规定（m，n）表示第m排从左向右第n个数，则（5，4）与（15，7）表示的两数之积是．-九年级数学
• -八年级数学
• —Did Alan enjoy seeing his old friends yesterday?—Yes, he did. He his old friends for a long time.A
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• 计算：（1）；（2）。-八年级数学
• 当X时，-九年级数学
• How I wish I a doctor and I the girl.A．am; can save; deadB．was; can save; deathC．were; could save;
• —I thought I asked you to fix the radio.—Oh，I’m sorry.Mother，I__________it right now.A．am to doB．w
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• 在函数中，自变量的取值范围是（）A．且B．且C．D．-九年级数学
• 化简的结果是（）A．B．C．D．-九年级数学
• When I was in the countryside, I ____ by the riverside every day.A．walkedB．was walkingC．walkD．have w
• — Isn’t it hard to drive downtown to work? —Yeah, that’s why I ______ to work by train. A．have goneB
• I called Mary many times yesterday evening, but I couldn’t get through. Her brother _________ on the
• When I met Becky, she told me that she ______ for an interview the next day.A．would goB．has goneC．w
• I wasn’t aware of this before, but recent research _____ that eating too much fat can contribute to
• To everyone’s amazement now, technology ________ faster than most people can keep pace with.A．is cha
• 计算：（1）（2）：-八年级数学
• 友情提示：请同学们做完上面考题后，再认真检查一遍，估计一下你的得分情况，如果你全卷得分低于60分（及格线），则本题的得分将计入全卷得分，但计入后全卷总分最多不超过60分-八年级数学
• 小题1:2＋－4小题2:．-九年级数学
• 若则．-九年级数学
• 如果把棱长分别为3.51cm,2.26cm的两个正方体铁块熔化，制成一个大的正方体铁块，那么这个大正方体铁块的棱长是多少？（用一个式子表示，并用计算器进行计算，最后结果保留2个-八年级数学
• -八年级数学
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• —Would you like to go to the cinema with me tomorrow afternoon?—I’d like to, Mum, but I ________ to
• 计算(每小题6分,共18分)小题1:(1)小题2:(2)小题3:(3)-八年级数学
• 已知，那么的值为（）．A．－1B．1C．D．-九年级数学
• 计算：。-八年级数学
• 下列运算正确的是[]A、-（-x+1）=x+1B、C、D、（a-b）2=a2-b2-九年级数学
• (10分)观察下列等式：①；②；③；……回答下列问题：小题1:（1）利用你观察到的规律，化简：小题2:（2）计算：-九年级数学
• （10分）计算小题1:（1）小题2:（2）-九年级数学
• 若成立，则-九年级数学
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• 的算术平方根是()-八年级数学
• 判断正误：对的画“√”，错的画“×”．（1）2+3=5；（______）（2）8-3=5；（______）（3）2+2=22；（______）（4）32-2=3；（______）（5）22+2=22；
• 如果有意义，那么字母的取值范围是【】A．B．C．D．-九年级数学
• 计算：（每小题8分，共计16分）小题1:（1）（+）－（－）小题2:（2）-九年级数学
• 观察下列各式：①、，②、③、，…请用含n(n≥1)的式子写出你猜想的规律：-九年级数学
• 函数中自变量x的取值范围是（）A．x≥B．x≠3C．x≥且x≠3D．-九年级数学
• 化简的结果是（）A.一2BC.2D.4-九年级数学
• 计算：-九年级数学
• （本题6分）观察下列各式及其验证过程：验证：小题1:(1)按照上面结论猜想的结果，并写出验证过程；小题2:(2)根据对上述各式规律，写出用n(n为正整数，且n≥2)表示的等式并给出证明-九年级数学
• “When are you Wuhan?” my friend asked me. A．going offB．leaving forC．set out toD．starting-英语