对于采血用的塑料血袋你应该掌握几项基本知识（）
A.5
B.6
C.7
D.8
参考答案：B
Mike came here _____ to see you, _____ after he heard that you had retumed from abroad. [ ]
A. especially; specially
B. especially; especially
C. specially; especially
D. specially; mainly
年过70岁老年人，胃切除术后1～3天，输液量过大，点滴速度过快，易发生（）
A.切口感染
B.切口裂开
C.肺不张或肺内感染
D.急性肺水肿
E.深静脉血栓形成
