A. have the natural abilities to choose a balanced diet

　　B. develop a taste for the same kinds of flavors

　　C. have the same eating patterns

　　D. prefer flavored food and drink

　　68. In the experiment on rats, a fragrant flavor was added to the water to ________.

　　A. prove that vitamins are tasteless

　　B. find out rats preference in flavor

　　C. encourage rats to drink vitamin-enriched water

　　D. test whether rats know which drink is good for them69. The expression “the habit” in Para 1 refers to drinking water which ________.

　　A. is clear B. is tasteless C. is flavored D.has vitamins

　　70. According to the passage, adults eating habits differ from those of babies because ________.

　　A. adults have more choices of food than babies in eating patterns

　　B. adults usually cannot resist the temptation of various delicious food

　　C. adults’ eating habits are closely related to the social and culture customs

　　D. adults know better than babies what kinds of food are good for their health

　　ADCC

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