问题 问答题

银川平原和河西走廊都是当地重要的农业区,它们的灌溉水源有什么不同?

                                                                                                                                                                

                                                                                                                                                                

答案

提示:银川平原的灌溉水源是黄河水;河西走廊的灌溉水源是祁连山的冰雪融水。

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