题目

Only after leaving home ______ the true meaning of the proverb, “East or west, home is best.”     A. he understood         B. he did understand     C. did he understand     D. had he understood 答案：C判一判．（1）0除以任何数都等于0．××（2）606是3的22倍．××（3）三位数除以一位数，商是两位数．××（4）一个数除以9，商一定比这个数小．××．