—What's the matter?
—My new pen doesn't _______.[ ]
A. write
B. use
C. go
D. work
答案:D
急性呼吸衰竭给氧的流量一般为()
A.1~2L/min
B.2~3L/min
C.3~4L/min
D.4~5L/min
E.5~6L/min
骨折特有体征()
A.异常活动
B.功能障碍
C.呼吸困难
D.持续高热
E.血压降低