用所给词的适当正确形式填空:
题目
用所给词的适当正确形式填空:
Are they _____(love) to chat with each other after class.
They _____(look) like each other.But they _____(not,be) twins.
答案
Are they 【loving】(love) to chat with each other after class.他们喜欢下课后相互交谈么?They 【look】(look) like each other.But they 【aren't】(not,be) twins.他们彼此看起来相像,但他们不是双胞胎...
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已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
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