题目

9900÷900=（）A. 6 B. 11 C. 17 D. 20 答案：【答案】B【解析】计算被除数和除数末尾有0的除法，先划去被除数和除数末尾相同个数的0，然后再计算，商不变，据此解答比较简便.9900÷900=99÷9=11故答案为：B.Yesterday,when I visited my cousin,I find he went to the bathroom very often. He didn't look like alright. "What is wrong about you?" I asked him. "I think I had too many milk this morning," he said. I asked him how. He said, "My mother went to a supermarket yesterday afternoon. When she saw some milk on sale,she bought three big bottle. We had to finish all milk this morning because it was no longer fresh. " I knew what she meant. My aunt wanted to save some money through buy the cheap milk. I real don't think she should have done that.