Please use the proper form of the following words to fill in the blanks:
题目
Please use the proper form of the following words to fill in the blanks:
good dangerous fast expensive safe poor little many
4) This machine costs only 5,000.It is ___________ than that one which is 8,000 but of similar functions.
答案
less expensive
如果选项有low的话,还可以用lower.
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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