中国最长的河流是

{"name":"\u4e2d\u56fd\u6700\u957f\u7684\u6cb3\u6d41\u662f","type":"\u751f\u6d3b\u7247","area":"\u82f1\u56fd","year":"1986","lang":"\u5176\u5b83","play":"\u8d85\u6e05\u4e2d\u5b571080P","type1":"\u751f\u6d3b\u7247"}