题目

I don’t think Jack is a man to be ______ when we are in trouble. He only cares for himself.    A. relied on       B. familiar with    C. turned to      D. based on 答案：A 解析: 略下列关于黄河的表述，错误的是（　　）A．黄河的下游位于东北平原B．河口是黄河上游和中游的分界点C．黄河是我国的第二长河D．黄河下游形成“地上河”