According to the passage, Moore's icebox allowed him to _______________. A. charge more for his butter B. travel to market at night C. manufacture butter more quickl

Đáp án A

Theo bài đọc, thùng ướp lạnh của Moore cho phép ông

A. thu phí nhiều hơn cho món bơ                            B. đi chợ về đêm

C. sản xuất bơ nhanh hơn                                         D. sản xuất đá cả năm

Dẫn chứng: When he used an icebox of his own design to transport his butter to market, he found that customers would pass up the rapidly melting stuff in the tubs of his competitors to pay a premium price for his butter, still fresh and hard in neat, one-pound bricks.