Five hundred thousand two hundred and eighty means .
A. 5280
B. 50,280
C. 500,280
D. 500,208
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I used to smoke but now I gave it up a year ago.
A. seriously
B. heavily
C. badly
D. severely
Our people may get sick, our city may get sick, but we as a nation, we never ever get sick.
We have been much cruller trials.
二氧化硫排污许可的交易主体是服务行业。()
A. 对
B. 错