_________ the development of science,
题目
_________ the development of science,
job positions are becoming fewer and fewer,so many people are worried about ________ they would be out of work.
A.With; if B.As; whether C.With; whether D.As; if
选哪个,为什么
答案
C
随着科学的发展,用with
是否可用if也可用whether,但介词后只能用whether
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
最新试题
热门考点