肺部CT的应用指征不包括
A.肺部弥漫性病变B.咯血C.肺气肿D.大范围气胸E.肿瘤分期
参考答案:D
解析: 大范围气胸,平片即可满足诊断。
________ these experiments were successfully completed would we think of going into humans.
A.If only
B.Only if
C.So that
D.Even if
井巷揭穿突出煤层前,具有独立的,可靠的()
A、防火系统
B、防尘系统
C、通风系统
D、抽放系统