According to the passage, which of the following w...
Câu hỏi: According to the passage, which of the following was an obstacle to the development of the icebox?
A Competition among the owners of refrigerated freight cars
B The lack of a network for the distribution of ice
C The use of insufficient insulation
D Inadequate understanding of physics
Câu hỏi trên thuộc đề trắc nghiệm
Đề luyện thi THPT Quốc gia môn Anh 2018 - Đề số 13 ( có video chữa)