密度相同的粒群在粗、细粒级产物中的分配率均为()时,该粒群的粒度称为()。
参考答案:50%;分配粒度
— Which office is Johnson Black in?
— Johnson Black? I've heard of ____ person here. [ ]
A. no such
B. not such
C. such no
D. no such a
转向系统的油路由()组成
A、先导油路
B、主油路
C、先导油路和主油路