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i have a lot of expensive shoes,but the ones i bought yester
1年前
句型转换:根据划线部分提问1.I went to (the Summer Palace) last last weeke
1年前
已知X+Y=4,xy=-12,求下列各式的值.(1)x^2+y^2 (2) (x-y)^2
1年前
Is there as much water in this glass as in that one?
1年前
下列说法中正确的是( )A.按系统命名法,化合物的名称是2,3,5,5-四甲基-4,4-二乙基己烷B.卤代烃C3H6C
1年前