She often eats fruits ang vegetables.(对划线部分提问)
题目
She often eats fruits ang vegetables.(对划线部分提问)
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答案
这句话的意思是他经常吃水果和蔬菜.如果要对often经常提问的话,就应该是问她多久吃水果和蔬菜一次?就是:
How often does she eat fruits and vegetables?
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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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