单项选择题
M: Did you buy the bed we saw last week W: Of course. Though it’s not so beautiful, it’s very cheap.
A. It is beautiful. B. It is cheap. C. The woman likes it very much. D. It is of high quality.
A. It uses the science of nutrition to construct diets in health and disease. B. It uses the science of nutrition to select foods. C. It uses the science of nutrition to create diets only for patients. D. It uses the science of nutrition to prepare foods.
A. kept as it is for a long time B. not fixed C. easy to improve D. the most important