China is one of the countries ________ the Mekong River Wap版

试题详情及答案解析

China is one of the countries ________ the Mekong River flows.

A．in which	B．by which
C．across which	D．through which

答案：D

试题分析：句意：中国是澜沧江流经的国家之一。flow through 流经（暗含从内部经过）；flow across流过（暗含从表面经过）故选D。
考点：考查定语从句中介词+ which。