1.He attended ___opening of the new theatre___day before yesterday.
题目
1.He attended ___opening of the new theatre___day before yesterday.
【A.the;a B.the;the C.an;a D.an;the】
2.Workers keep the fish___refrigerated trucks so that it can be fresh for a long time.
【A.to B.into C.on D.in】
答案
1 B
2 D
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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