1.These are biue bags.2.Those are white dogs.3.They are yellow caps.4.These girls are nice.分别做出
题目
1.These are biue bags.2.Those are white dogs.3.They are yellow caps.4.These girls are nice.分别做出
肯定与否定回答.
答案
1.Are these blue bags?Yes,they are.No,they aren't.2.Are those white dogs?Yes,they are.No,they aren't.3.Are they yellow caps?Yes,they are.No,they aren't.4.Are these girls nice?Yes,they are.No,they aren...
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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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