Question

The cost of living in Chengdu is among the lowest in China, ________ the quality of life is probably one of the highest.

A．since

B．when

C．a(chǎn)s

D．while

Answer 1

D

試題分析：since 由于，自從……以來；when當……時；as 伴隨，隨著；while當……時，然而。句意：在成都的生活花費屬于中國消費最低的城市之一，然而生活水平卻處于最高水平當中。結(jié)合語境可知選D。