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
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.
According to the passage, all of the following are the results of global warming EXCEPT ____.
According the passage, which of the following is TRUE about Amazon rainforest?
The final product of the process of drying liquids that uses the first method will be ______.
The word "inconsequential" in paragraph 1 is closest in meaning to ______.
The word “checked” in the second paragraph is closest in meaning to _____.
In paragraph 2, the word “erratic” is closest in meaning to ____.
Which of the following can result from the loss of one species in a food chain?