, the growing lack of kindness is a social phenomenon that has caused great concern of society.[ ]

A. As a consequence

B. On the whole

C. On the contrary

D. In the meanwhile

使用有偿或职业献血者的缺点有（）。

A.会动摇自愿无偿献血体系的基础

B.有偿献血者可能不健康

C.他们献血频率可能超过规定

D.给贫困家庭的输血病人增加负担