Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
Carbohydrates, which are sugars, are an essential part of a healthy diet. They provide the main source of energy for the body, and they also function to flavor and sweeten foods. Carbohydrates range from simple sugars like glucose to complex sugars such as amylose ans amylopectin. Nutritionists estimate that carbohydrates should make up about one-fourth to one-fifth of a person’s diet. This translates to about 75-100 grams of carbohydrates per day.
A diet that is deficient in carbohydrates can have an adverse effect on a person’s health. When the body lacks a sufficient amount of carbohydrates, it must then use its protein supplies for energy, a process called gluconeogenesis. This, however, results in a lack of necessary protein, and further health difficulties may occur. A lack of carbohydrates can also lead to ketosis, a build-up of ketones in the body that causes fatigue, lethargy, and bad breath.
What does the word “this” refer to in line 8?
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Lời giải:
Báo saiTừ “this” ở dòng 8 nói về?
sủ dụng các nguồn cung protein làm năng lượng
chuyển đổi carbohydrates thành năng lượng
có sự thiếu hụt carbohydrates
có sự thiếu hụt protein
Dòng trước: “…, it must then use its protein supplies for energy, a procees called gluconeogenesis,…”