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【题目】春节时,黑龙江冰天雪地,海南岛烈日炎炎,气候的主要影响因素是 ( )

A. 纬度因素 B. 海陆因素 C. 洋流因素 D. 地形因素

【答案】A

【解析】我国位于北半球,南北跨将近50个纬度.在冬季,太阳直射在南半球,对北半球来说,纬度越高,正午太阳高度角越低.我国北方地区正午太阳高度角比南方低,白昼短,得到太阳的光热少.所以,我国黑龙江省北部冬季低温可达-30~-40℃,滴水成冰,大地白雪皑皑;而海南省冬季平均气温在20℃左右,气候暖热,到处绿树成阴.故选A。

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