In the process of drying certain kinds of fruits, sulphur fumes help ______.
A. remove their wax coating
B. kill off bacteria
C. maintain their color
D. crack their skin
Giải bởi Vietjack
Đáp án đúng là: C
Dựa vào câu: In order to prevent darkening, pears, peaches and apricots are exposed to the fumes of burning sulphur before drying.
Dịch: Để tránh bị sẫm màu, lê, đào và mơ tiếp xúc với khói đốt lưu huỳnh trước khi sấy.
The word “checked” in the second paragraph is closest in meaning to _____.
The final product of the process of drying liquids that uses the first method will be ______.
According the passage, which of the following is TRUE about Amazon rainforest?
Which of the following can result from the loss of one species in a food chain?
According to the passage, all of the following are the results of global warming EXCEPT ____.
What may happen to diseases and insect pests as a result of global warming?
The word "inconsequential" in paragraph 1 is closest in meaning to ______.
