His hair is very ______ but mine is very long. [ ]
A. long
B. short
C. tall
D. angry
答案:B
XDPS-400系统是如何供电的?
不要随便把烧伤水泡弄破的目的是()
A.降低感染机会
B.防止出血过多
C.避免留下疤痕