分压力定律。
参考答案:
混合气体的总压力应该等于各组元分压力之和。
I have______ all my pocket money. I have to find a part-time job. [ ]
A. gotten out, of
B. taken out of
C. run out of
D. gone out of'
成人气管的前后径为()
A.0.5~1.0cm
B.1.0~1.5cm
C.1.5~2.0cm
D.2.0~2.5cm
E.1.3~1.8cm