在一定容器内的混合气体，各组分的分压力可用（）求得。
A.牛顿定律
B.拉乌尔定律
C.道尔顿分压定律
参考答案：C
One of our rules is that every student ________ wear the school uniform while at school.
A．might
B．could
C．shall
D．will
