题目

When I was four years old，I broke my elbow. After many weeks in a cast (石膏) I returned to the hospital to finally have it removed. My mother found it strange that I was so enthusiastic about returning to the place where I had experienced so much pain. Yet she soon discovered my fas??cination with the healing process and how doctors helped to enhance it. I was in fear as the doctor removed my cast and asked me to move my arm，and immediately became scared as the pain came shooting back through my elbow. After another series of X-rays and examinations my arm was put into a new cast I had读漫画“长江与黄河的对话”，下列叙述正确的是(     )A．长江与黄河都结冰B．长江与黄河的流量都不大C．长江是名副其实的“黄金水道”D．长江流域生态破坏严重，水土流失导致含沙量增大