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【题目】有关极地地区的叙述,正确的是

A.南极洲是地球上淡水资源最缺乏的大洲

B.北冰洋是地球上跨经度最广的大洋

C.南、北极地区四季分明,季节相反

D.南、北极地区一年四季均可以看到极昼、极夜现象

【答案】B

【解析】

根据北极地区是以北冰洋为主体,南极地区以南极大陆为主体,极地酷寒,多狂风,降水稀少。夏季出现极昼时,太阳总在地平线上,但太阳高度小,阳光娇弱无力,根本无法驱散冰原上的寒气,进行分析解答。

南极洲是地球上淡水资源最丰富的大洲,是以固态冰的形式存在,故A错误。

北冰洋是地球上跨经度最广的大洋,所有的经线都经过北极点,故B正确。

南、北极地区都处于高纬度地区,终年严寒,故C错误。

当太阳直射北回归线时,北极圈以北的地区出现极昼现象,南极圈以南的地区出现极夜现象;当太阳直射南回归线时,出现的现象正好相反,故D错误。

故选:B

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