1.The water is ___. A.clear B.dirty C.busy D.busying
题目
1.The water is ___. A.clear B.dirty C.busy D.busying
2.There are some boats ___ the lake.
A.at B.on C.from D.of
3.____ the lake a young man is reading.
A.Between B.In C.Near D.Of
答案
1.B
2.B
3.C
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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