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Is your brother at home?I want to________ him about our picnic.
1年前
同义句转换 A:He studies hard so that/in order that he could catch up with the class.
1年前
1年前
已知函数fx)=e^x-a(x+ 2). (1)当a=1时,讨论f(x)的单调性; (2)若f(x)有两个零点,求a的取值范围.
1年前
In many people’s eyes, middle school students are happy and carefree(无忧无虑).
1年前