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[Problem Solving]
试题详情
题目：
If 30!/10! is written as the product of consecutive integers, the largest of which is 30, what is the smallest of the integers?
选项:
A、1
B、3
C、7
D、11
E、20
答案:
D
提问：
希望老师帮忙解答一下这道题解题思路和考点：
For 220 – k when k is a single digit integer, if 220 – k is divisible by 3, then which of the following could be a value of k?
1
4
7
Answer: 1，4，7
解答：
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提问：
希望老师帮忙解答一下这道题解题思路和考点：
For 220 – k when k is a single digit integer, if 220 – k is divisible by 3, then which of the following could be a value of k?
1
4
7
Answer: 1，4，7
解答：
点赞0
阅读1844
提问：
不会做
解答：
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阅读1839
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