The purpose of the additive mentioned in paragraph 4 was to
C
Mục đích của chất phụ gia được đề cập ở đoạn 4 là để
A. tăng tốc độ xe hơi
B. làm động cơ hoạt động hiệu quả hơn
C. giấu mùi nặng
D. làm xe hơi trông đẹp hơn
Dẫn chứng: The Duryea Motor Wagon Company, which launched the American auto industry in 1895, offered a fragrant additive designed to mask the smells of the naphtha that is burned.
=>Chọn C
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