利润率表明了()
A、资本家对工人的剥削关系
B、资本对雇佣劳动的剥削程度
C、剩余价值好象来自于全部预付资本
D、预付资本增殖的程度
参考答案:B, C, D
Nothing can stop a _____ student _____ his mind to give up his studies. [ ]
A. promised; to change
B. promised; changing
C. promising; changing
D. promising; to change
画轴测装配图,一般先画出完整的(),然后进行剖切。
A、零件图
B、三视图
C、装配图
D、全剖视图