问题
单项选择题
A certain company has records stored with a record-storage firm in 15-inch by 12-inch by 10-inch boxes. The boxes occupy 1.08 million cubic inches of space. If the company pays $0.25 per box per month for record storage, what is the total amount that the company pays each month for record storage ？（）
A．$150
B．$300
C．$600
D．$1，200
E．$2,400
答案
参考答案：A
解析：
首先应算出该公司共有多少盒的唱片被保管：
[*]
所以该公司总共应付的钱为600×0.25=150美元。