理想气体混合物中的某一组分的摩尔分率等于该组分的压力分率，也等于该组分的体积分率。
参考答案：对
根据保健要求，出生1个月婴儿访视次数是
A．1次B．2次C．3次D．4次E．5次
There are more girls than boys in that school, with of the students being girls.
A．three fifth
B．three fifths
C．third five
D．thirds five
