题目

、如图，⊙O的直径为10，弦AB的长为8，M是弦AB上的动点，则OM的取值范围是( )A．3≤OM≤5B．4≤OM≤5C．3<OM<5D．4<OM<5 答案：A解析:p;【解析】略 It's very thoughtful ________ Mr．Zhao ________ us homework at Christmas． [　　] A．for, doesn't give B．for, not to give C．of, not to give D．with, not give