题目

如图OC、OD是∠AOB内部两条射线，OM平分∠AOC，ON平分∠DOB，若∠AOB=110°，∠MON= 70°，则∠COD =度 答案：【1】30The boy made a hole in the wall 10cm ________ 5cm to put a toy gun in.A.toB.byC.forD.of