以下哪种胸部创伤一般不会出现低氧血症()。
A.单纯的多发性肋骨骨折
B.连枷胸
C.创伤性湿肺
D.张力性气胸
E.多发肋骨骨折合并血气胸
参考答案:A
—Are you going to attend the academic lecture tomorrow?
—_____. I might have to pick my uncle up at the airport.
A.No problem
B.It all depends
C.No way
D.It sounds great
额定速度2.0m/s的曳引式电梯,轿厢限速器的动作速度应在()之间。
A.2m/s~2.5m/s
B.2.3m/s~2.625m/s
C.2.5m/s~2.7m/s