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________ he has said sorry to you, please give him another chance.
1年前
According to an ___________ (古代的) Chinese legend, tea was invented by accident.
1年前
小马虎在计算一道题目时,把某数乘5加30,误看成某数除以5减30,结果得80。这个数是多少?正确的得数是多少?
1年前
已知曲线上任一点P(x,y)处的切线斜率等于2x y,且该曲线通过原点,求此曲线方程.
1年前
—What day is it? —___________. [ ]
1年前