About 270 million people in rural areas in China have no to safe drinking water.A. entranc

问题补充：

About 270 million people in rural areas in China have no to safe drinking water.

A. entrance

B. access

C. solutions

D. sources

答案：

A. entrance

(答案→)B. access

C. solutions

D. sources

解析：考查名词辨析，entrance入口，access接触，solutions解决方案，sources来源，句意：在中国的乡下大约两亿七千万人没有接触到安全饮用水。故选B。