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45千米每小时化成多少米每秒
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思乡诗句
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童年往事六年级作文,急,要够数字500.
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小麦玉米比价倒挂的含义是什么?
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we （were listening to the teacher carefully ）when she came i
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if you would go ,i will go,too.如果你去,那我也去.would能换成will吗
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2.3g的某有机物A完全燃烧后,生成0.1mol的二氧化碳和2.7mol的水,测得该化合物的蒸气与氢气的相对密度是23,
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In life we all have those moments where we compare ourselves
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讲10盒火柴包成一包 火柴盒的长是5cm 款式3cm 厚是1cm 怎么包最省纸
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与椭圆x^2/9+y^2/25=1共焦点 ,且其渐近线方程为x+-根号3y=0,求双曲线方程
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怎么样辨别沙发的好坏呀?
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1._______no buses ,we had to walk home.2.______Sunday,I shal
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My cousin wants to be a cook的同义句
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x+3600=5x解方程拜托
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若代数式-3X的2A-1次方乘以Y与3分之2X的9次方乘以Y的负B次方是同类项,求A的平方减AB+B的2010次方的值.
