Nowadays more and more people regard traveling as part of their life, and Chinese transport has been strengthened for the holiday travel .
A. agent
B. diploma
C. dilemma
D. boom
网友回答
A. agent
B. diploma
C. dilemma
(答案→)D. boom
解析:名词辨析。A代理人,代理商;B毕业文凭,学位证书;C进退两难的境地;D繁荣,迅速发展;句意:现在越来越多的人把旅游当成生活的一部分,为了让假日旅游迅速发展,中国的交通也被进一步加强了。故D正确。