H2O+HSO3﹣+I2=SO42﹣+2I﹣+3H+…②
IO3﹣+I﹣+H+=I2+H2O（未配平）…③
回答下列问题：
如图为常见的自行车传动示意图．A轮与脚蹬子相连，B轮与车轴相连，C为车轮．当人蹬车匀速运动时，以下说法正确的是（ ）
2017年是“八一”建军节80周年。请问“八一”建军节与下列哪一次起义有关（ ）
⑴What's your favourite season?____ A. It's sunny and cool.
⑵Why do you like winter?____ B. I can swim.
⑶I like spring.____ C. Autumn.
⑷What can you do in summer?____ D. Because I can skate.
⑸What's the weather like in autumn in Beijing?____ E. Me too.
简述举办查干湖冰雪渔猎文化旅游节对当地旅游业的有利影响。
