题目内容:
Whichofthefollowingphrasesinthefifthparagraphindicatesthefi'idge'snegativeeffectontheenvironment.
A."Humawaycontinuously". B."Climaticallyalmostunnecessary".
C."Artificially-cooledspace".
D."Withmildtemperatures".
参考答案:
答案解析: