企源知识库

Green products are becoming more and more popular because they are environmentally _______.
A、friendly
B、various
C、common
D、freely
【正确答案】：A
【题目解析】：形容词辨析。A友好的；B各种各样的；C普通的；D自由的；句意：绿色产品正变得越来越受欢迎，因为他们很环保。