Track lighting is one of the most popular types,______of lighting on the market today. A．if not most popular type B．if no more popular type C．if not any more popular type D．if not the most popular type
A. A．if B.if C.if D.if
【参考答案】
D 本题综合考查形容词最高级和让步状语从句的用法，题意为，活动式投射灯照明，即使不是现今市场上最流行的类型，也是......