犬胫骨骨折特有的临床症状为（）。
A、卧地不起
B、患部严重出血
C、患部水肿
D、患部异常活动
E、患部异常固定
参考答案：D
Meimei got excited _____ the news when she heard that she won in the game. [ ]
A. for
B. about
C. to
显微镜法计数白细胞时，通常加外周血（）
A.40μl
B.30μl
C.20μl
D.10μl
E.50μ1
