-The earthquake which happened in Wenchuan caused great______.
题目
-The earthquake which happened in Wenchuan caused great______.
-Yes,it____many buildings and a lot of people lose their lives.
A.damage,damaged
B.damages,have damaged
C.damage,had damaged
答案
A.damage,damaged.
第一个damage 是名词,不可数；“损坏”
第二个是动词,用过去时,“破坏、损坏”.
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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