成语“南辕北辙”,指要到南方去,却驾着车往北走.比喻行动和目

成语“南辕北辙”,指要到南方去,却驾着车往北走.比喻行动和目的相反,最后不能达到目的地.如果“东辕西辙”,理论上可以到达目的地,解释其原因正确的是:(     )

①经线等长;纬线不等长 

②经线指示南北方向;纬线指示东西方向

③地球自西向东运动

④经线是圆;纬线是半圆 

⑤地球在公转时,地轴是倾斜的 

⑥经线是半圆;纬线是圆.

A.①②            B.①⑤               C.③④              D.②⑥

答案

D

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