According to the passage, what are nitrates used for? They preserve flavor in package foods

Câu hỏi :

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

A. They preserve flavor in package foods

B. They are the objects of research

C. They preserve the color of meats

D. They cause the animals to become fatter

* Đáp án

C

* Hướng dẫn giải

Đáp án C

Theo bài đọc, nitrat được sử dụng để làm gì?

A. Chúng giữ màu cho thực phẩm được đóng gói.

B. Chúng là những đối tượng nghiên cứu.

C. Chúng bảo quản màu của thịt.

D. Chúng làm cho động vật béo hơn.

Dẫn chứng: That food is related to illness is not a new discovery. In 1945, government researchers realized that nitrates and nitrites (commonly used to preserve color in meats) as well as other food additives caused cancer. Yet, these carcinogenic additives remain on our food, and it becomes more difficult all the time to know which ingredients on the packaging labels of processed food are healthful or harmful

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