2.Jenny wasvery sad over the loss of te photos she had shot at Canada,
题目
2.Jenny wasvery sad over the loss of te photos she had shot at Canada,
,___this was a memory she especially treasured.
A.as B.if C.when D.where
答案
选 A as 译为 由于,因为
珍妮非常伤心失去她在加拿大拍的照片,由于这是她珍藏的一种记忆.
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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