单选题 What is the total number of integers between 1 00 and 300 that are divisible by 3?
【正确答案】 B
【答案解析】这道题目中300刚好是3的倍数,不用往小里凑;同理如果a恰好是n的倍数,也不需要把a往大里凑;因此这道题的计算方法为:(300-102)/3+1=67,正确答案为B。