Only she is at home because of the housework,and the rest of the family _________ there for a short
题目
Only she is at home because of the housework,and the rest of the family _________ there for a short
Only she is at home because of the housework,and the rest of the family _________ there for a short stay.
A.have gone B.has gone C.has been D.have been
答案
A
意思是已经去了某地 但没未回来
have been 的意思是 去过 但已经回来了
has的都不考虑 因为the rest of the family是其他家人的意思 是复数,后面不能用has
举一反三
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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