3、根据句意,从而能够判断出正确的关系词.3.【2018·江苏】:23.Self-driving is an area _______China and the rest of the world are on the same startingline.A.thatB.whereC.whichD.when【答案】:B【解析】:考查定语从句.句意:自动驾驶是一个中国和世界其它国家都在同一起跑线的领域.句中先行词为area,在从句中作地点状语,故用关系副词where,相当于inwhich.故选B.点睛:本题考查定语从句.定语从句是高考重