题目内容

【题目】小明想建造一所房子。他想要选择这样一个地方:以东是西半球,以西是东半球;以南是中纬度,以北是低纬度。此地是( )

A.(0°,0°)B.(160°E,30°S)

C.(20°W, 30°N)D.(160°E,60°N)

【答案】B

【解析】

根据由经线和纬线相互交织所构成的网络叫做经纬网,利用经纬网可以确定地球表面任何一个地点的位置。东西半球分界线是20°W160°E组成的经线圈,20°W以东、160°E以西为东半球,20°W以西、160°E以东为西半球。纬度划分,0°~30°为低纬度地区,30°~60°为中纬度地区,60°~90°为高纬度地区,进行分析解答。

以东是西半球,以西是东半球的点位于160°E经线上;以南是中纬度,以北是低纬度的点位于30°S纬线上;由此可知,该点的经纬度是(30°S160°E)。故选:B

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