行经腹子宫全切术患者,硬膜外麻醉平面应为()。
A.T6~S4
B.T4~S4
C.T10~S4
D.T2~S4
E.T8~S4
参考答案:A
The question______new measures should be taken to control the terrible air pollution is______puzzles scientists a lot.
A.that; what
B.which; that
C.what; what
D.which; that
药物所含挥发油的散失,导致气味变化,称为()。
A.泛油
B.霉变
C.虫蛀
D.气味散失
E.溶化