题目

Pilates，yoga and the running machine get all the attention when it comes to popular ways to stay healthy．There is，however，a more humbleexercise that might not be so attractive，but has all benefits-walking．     Certified fitness professional JolynnJaekel explains，What I love about walking is that anyone can do it at any age and any fitness level．Plus，it's good for your heart，your head and your wallet．A recent report details the health benefits of walking．The report found that walking regularly to fulfill the 150 minutes of moderate physical exercise every we22、读我国部分区域图，回答下列问题。 （1）A河流的名称是_______，B是该河流最大的水利枢纽工程，它位于         省。 （2）南京市某中学生要乘火车到济南参加第十一届全运会开幕式，请你写出他所经过的铁路干线名称                                。 （3）武汉附近的江汉平原是我国重要的农业区，请你从地形、气候两方面简要分析当地发展农业的有利条件。                                    。 （4）近年来，A河流含沙量不断增多，有变成第二条“黄河”的趋势，请你分析原因并提出解决的措施。                                              。