读我国某省区图。完成问题。下列我国重大工程位于或通过该省区

读我国某省区图。完成问题。

下列我国重大工程位于或通过该省区的有（）

①南水北调 ②西电东送 ③西气东输 ④三峡工程

A．①②③ B．①②④ C．①③④ D．②③④

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读我国某省区图。完成问题。 下列我国重大工程位于或通过该省区

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读我国某省区图。完成问题。下列我国重大工程位于或通过该省区