单项选择。
— do you come to school?
— By bike. [ ]
A. How
B. Where
C. What
D. Which
答案:A
Misunderstandings _____ from lack of social communication, unless _____ properly, may lead to serious
problems. [ ]
A. arisen; handling
B. arising; handled
C. rising; handled
D. risen; handling
骨折的愈合过程包括()
A.血肿机化演进期
B.原始骨痂形成期
C.肉芽组织生成期
D.细胞增殖分化期
E.骨痂改造塑型期