We were watching TV when suddenly there was a ____ on the window.
题目
We were watching TV when suddenly there was a ____ on the window.
A. tip
B. tap
C. lap
D. sap
选什么,为什么呢?
答案
B 我们正在看电视的时候突然听到敲打窗户的声音
tip 倾斜、小费
lap 衣服下摆
sap 坑道
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