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【題目】與10°E正好相對的經線是 ( )

A. 90°W B. 170°W C. 170°E D. 140°E

【答案】B

【解析】地球上所有的經線都是連接南北兩極的半圓,丙條相對的經線可組成一個經線圈,兩條經線相加之和等于180°,方向相反,所以與10°E正好相對的經線是170°W,故選B。

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