Have you heard the news?An ____ boy was hurt in tje traffic accident.
题目
Have you heard the news?An ____ boy was hurt in tje traffic accident.
A.eight-years-old B.eight years old C.eight-year-old D.eight-years old
说明原因
答案
C
八岁的,做定语,必须每个单词之间都有连接符,而连接符连接的都必须是单数形式
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