单选题 4.  Buyers have withdrawn from the market in view of the abrupt turn of the trend of prices.
【正确答案】 A
【答案解析】 A.突然的;B.紧急的;C.迅速的,快的;D.显然的。abrupt意思是“突然的”,故选A。原句意思是:由于价格趋势的突然转变,买主已退出市场。