As a result of the earthquake, two-thirds of the buildings in the area _____. [ ]

A. need repairing

B. needs repairing

C. needs to be repaired

D. need to repair

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