AMC 8 2018 Problem 16
AMC8 2018 年第 16 题
排列与组合★★★☆☆
Professor Chang has nine different language books lined up on a bookshelf: two Arabic, three German, and four Spanish. How many ways are there to arrange the nine books on the shelf keeping the Arabic books together and keeping the Spanish books together?
教授有 9 本不同的书在书架上排成一排：2 本阿拉伯语书，3 本德语书和 4 本西班牙语书。有多少种把这些书排成一排的方式，要求阿拉伯语书在一起，并且西班牙语书也要在一起？
- A.1440
- B.2880
- C.5760
- D.182,440
- E.362,880
正确答案 · Correct Answer
C
解析 · Solution
解析整理中
继续练习