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举一反三
【单选题】For the most part, rapid economic development has been a favor. But there is a down side to development -- health problems such as overweight are all becoming more common, as more people take taxis to...
A.
it has benefited the general public greatly
B.
it has done harm to people's health nationwide
C.
it is going faster than anyone could have imagined
D.
it has helped to establish a healthy lifestyle. of the public