newlloncheng 幼苗
共回答了14个问题采纳率:100% 举报
1年前
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Tomorrow is his t_________ (12) birthday.
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There are many good stories about the Long March,_A__this is the most instructive.
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News Review Head-on Train Crash On May 18,two trains had a head-on crash (正面相撞) near New York City.
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已知函数f(x)=2x^2/(1-x)^2 (1)求f(x)的单调区间与极值 (2)求曲线y=f(x)的凹凸区间与拐点
1年前