Listen,read and guess.
题目
Listen,read and guess.
The first letter is in mat,not in hat.
The second letter is in bed,not in bad.
The third letter is in tea,not in sea.
The fourth letter is in pat,not in pet.
The last letter is in lamp,not in camp.
What material is it?
答案
第一个字母m
第二个字母e
第三个字母t
第四个字母a
第五个字母l
合起来是metal
metal 就是金属.
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