一个正方形周长是200米,边长是______米.
100÷4=20(米);
答:边长是20米.
故答案为:20.
The new car is _____ car, it isn't _____. [ ]
A. our, their
B. our, yours
C. they, my
D. their, we
黄疸的基本病因可分为
A.肝细胞性B.溶血性C.阻塞性D.以上都是E.以上都不是