【题目】The price of diamond rings has risen sharply, ______ the price of gold rings has gone down.
A.whenB.whichC.whileD.otherwise
在线课程【答案】C
【解析】
考查连词。句意：钻石戒指的价格猛增，然而金戒指的价格在下跌。A. when当……时候；B. which哪一个；C. while然而（表示对比）；D. otherwise否则。分析句子可知，前后文是对比关系。故选C