21．Developing a low-carbon economy is global topic and the world needs21．Developing a low-carbon economy is _ global topic and the world needs _clean revolution with participation from everyone, decision makers to the children. A. a；the\

21．Developing a low-carbon economy is global topic and the world needs21．Developing a low-carbon economy is _ global topic and the world needs _clean revolution with participation from everyone, decision makers to the children. A. a；the\
21．Developing a low-carbon economy is global topic and the world needs
21．Developing a low-carbon economy is _ global topic and the world needs
_clean revolution with participation from everyone, decision makers to the children.
A. a；the\x05B. a；a \x05C. the；a\x05D．／：the
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21．Developing a low-carbon economy is global topic and the world needs21．Developing a low-carbon economy is _ global topic and the world needs _clean revolution with participation from everyone, decision makers to the children. A. a；the\
B 发展低碳经济是一个全球性的话题,世界需要进行一场全面参与的清洁革命,地毯经济从娃娃抓起.^-^

c

B
一个话题，一场革命