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题目内容双击单词支持查询和收藏哦～
Last month a recycling facility received 175 used automobile batteries, all of which arrived at the facility in crates. Each of these crates contained 19, 20, or 21 used automobile batteries.
Quantity A
The number of crates containing used automatic batteries that arrived at the facility last month
Quantity B
9
C显示答案
· 相关考点
1.1.2 凑整 7.2.2 GRE数学170坑题 1.1.2凑整 考察角度三：个位分析法凑整 7.2.3 GRE数学170脏题
6.4.5 概率中的集合问题
7.2.2 GRE数学170坑题
7.2.3 GRE数学170脏题
以上解析由 考满分老师提供。
