【单选题】【消耗次数：1】
当某地气温年较差为20℃，地理纬度为30°N时，其大陆度为（）k=（1.7⊿t/sinΦ）-20.4
①
1.7
②
47.6
③
19.6
④
20.4
参考答案：
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【单选题】
A点坐标为（10、20、30），B点坐标为（30、20、30）则AB距离为______。
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【单选题】
全面深化改革,必须高举中国特色社会主义伟大旗帜,以马克思列宁主义、毛泽东思想、邓小平理论、“三个代表”重要思想、科学发展观为指导,坚定信心、凝聚共识,统筹谋划,协同推进,坚持社会主义市场经济改革方向,以()出发点和落脚点。
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为促进社会公平正义、增进人民福祉
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立党为公、执政为民
③
为人民服务
④
权为民所用、利为民所谋、情为民所系