摘要：7．When it air pollution, Beijing faces the three “C s.cars.coal and construction.which lead to Beijing's thick air pollution． A．refers to B．comes to C．happens to D．speaks to
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When it air pollution, Beijing faces the three “C” s，cars，coal and construction，which lead to Beijing's thick air pollution．
A．refers to B．comes to C．happens to D．speaks to
查看习题详情和答案>>When it air pollution, Beijing faces the three“C”s，cars，coal and construction，which lead to Beijing's thick air pollution．
A．refers to B．comes to C．happens to D．speaks to
查看习题详情和答案>>When it ________ air pollution, Beijing faces the three “C” s－cars，coal and construction，which lead to Beijing's thick air pollution．
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A．
refers t
o
B．
comes to
C．
happens to
D．
speaks to