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【題目】目前兩極地區(qū)成了人們探測地球的熱點,請回答下列小題。

1與北極地區(qū)相鄰的大洲有

A.亞洲、非洲、歐洲B.非洲、歐洲、大洋洲

C.北美洲、南美洲、大洋洲D.亞洲、歐洲、北美洲

2我國科學考察隊去南極考察一般在11-12月抵達南極洲,主要原因是

A.此時正是南極極夜時期,風雪小B.此時南極冰雪大量消融

C.11月到次年3月為南極的暖季D.此時為南極的雨季

【答案】

1D

2C

【解析】

1從北極上空看,地球自轉的方向是逆時針方向,故北極地區(qū)四周的大洲依次是歐洲、亞洲、北美洲;根據題意,故選:D。

2南北半球季節(jié)相反,11-12月為北半球冬季時,南半球為夏季.南極洲在地球的最南端,北半球為冬季時,南極地區(qū)為極晝期,是暖季,有利于科學考察;故選:C。

本題考查極地地區(qū)的范圍及科考。

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