what did mary say?she said ___she want to eat an apple,A,that B,whether
题目
what did mary say?she said ___she want to eat an apple,A,that B,whether
答案
what did mary say?she said ___she want to eat an apple,
选A
因为从句是肯定的语气,所以用that
whether使用在疑问句中的
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．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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