题目内容

【题目】下列关于赤道的叙述，正确的是（ ）

①赤道是划分纬度的起点线，是90°纬线 ②赤道是划分经度的起点线，是0°经线 ③赤道是南半球和北半球的分界线 ④赤道是南、北纬度的分界线

A.①②B.①④C.③④D.②③

【答案】C

【解析】

根据纬线是在地球仪上，顺着东西方向，环绕地球仪一周的圆圈。所有的纬线都相互平行，并与经线垂直，纬线指示东西方向。纬线圈的大小不等，赤道为最大的纬线圈，从赤道向两极纬线圈逐渐缩小，到南、北两极缩小为点，进行分析解答。

赤道是划分纬度的起点线，是0°纬线，故①错误。

本初子午线是划分经度的起点线，是0°经线，故②错误。

赤道是南半球和北半球的分界线，故③正确。

赤道是南、北纬度的分界线，故④正确。

故选：C。

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