7, More than ________ contestants from all over China come to participate the annual winter swimmingcompetition.
A. 3400
B. 3500
C. 3600
D. 3700
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1,The Chinese character Li means _________.
2,During this solar term,in the fairly warn south a new sport ,____________ ,crops up in earlywinter .
3, The appearance of wine is regarded by some scholars as the end of ____________ and the beginningof ______________.
1,On the day of first frost,the Sun's rays reach an angle of_______ degrees to the earth.
A. 210
B. 220
C. 200
D. 230