已知：关于x的方程2-xx-3=-2-ax-3无解，则a的值为（）A．1B．-1C．-11D．-5-数学

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• 方程的解是=.-九年级数学
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• 解方程：(1)(5分)(2)(5分)-八年级数学
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• 分式方程的解是▲；-七年级数学
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• Once you ______ the habit of smoking, it is hard to quit.A．get overB．get intoC．get throughD．get up-高
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• When I arrived I saw the place was already ________ by two strangers in uniforms. [ ]A．conqueredB．oc
• 分式方程的解是（）A．-3B．2C．3D．-2-九年级数学
• The purpose of the newly-invented robots which can help bathe people is tothe dignity and privacy of
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• 有两块面积相同的试验田，分别收获蔬菜900kg和1500kg．已知第一块试验田每亩收获蔬菜比第二块少300kg，求第一块试验田每亩收获蔬菜多少千克．设第一块试验田每亩收获蔬菜xkg，-七年级数学
• 解方程：xx-2-2=3(x+2)2-x．-数学
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• The city, ________ by mountains and lakes, is so beautiful that they have decided to stay there for
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• She ______to them about her age in order to get the job.A．layB．laidC．liedD．lain-高一英语
• 解方程：-九年级数学
• 解方程：-九年级数学
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• —How are the team playing?—They're playing well, but one of them________hurt.[ ]A. gotB. hadC.
• 解分式方程：-八年级数学
• 解方程：xx-1=1-3(1-x)(x+2)-数学
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• 解方程：-=1-九年级数学
• 解方程：2（x2+2x）=3x2+2x-5-数学
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• 分式2m+5的值为1时，m的值是（）A．m=2B．m=-2C．m=-3D．m=3-数学
• 解方程：2(x+1)2x2-x+1x-1=0-数学
• 今年以来受各种因素的影响，猪肉的市场价格仍在不断上升。据调查，今年5月份一级猪肉的价格是1月份一级猪肉价格的1.25倍，小英同学的妈妈同样用20元钱在5月份购得一级猪肉比-八年级数学
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• If you ____a gas leak, do not strike a match or even turn on an electric light. [ ]A. imagineB. expe
• （5分）解分式方程：-八年级数学
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• Kathy ______ some French while she was away on a business trip in France.A．picked upB．took upC．made
• 解方程：-九年级数学
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• 解分式方程：2x+1-3x-1=4x2-1．-数学
• 解方程：63x=52x-1-数学