性能确认简称为()
A.OQ
B.PQ
C.PV
D.IQ
E.SIP
参考答案:B
A killer whale at Sea World Orlando jumped out of its tank on Wednesday and fatally attacked a worker as horrified visitors _______.
A.has been looking up
B.looked on
C.had looked off
D.was looking in
气管向患侧移位,提示的疾病是()
A.大量胸腔积液
B.支气管扩张症
C.肺气肿
D.肺不张
E.胸主动脉瘤