______ is medical technology that allows the prolongation of life artificially while the w

学历类 公共英语 已帮助 人

______ is medical technology that allows the prolongation of life artificially while the world is already over-populated?

A.Of what use

B.What use

C.Of which use

D.Which use

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。