A、 Vitamin B
B、 Vitamin C
C、 Vitamin D
D、 Vitamin A

【正确答案】 A

【答案解析】解析：文章最后说“too much vitamin B can damage the nerves”，故选A。

A、 Moderate amounts of all kinds of foods.
B、 Moderate amounts of high calorie food.
C、 Moderate amounts of low calorie food.
D、 Moderate amounts of high iron food.

【正确答案】 A

【答案解析】解析：从“But they should try to eat moderate amounts of all kinds of foods”可知答案为A。

A、 One fifth.
B、 Two fifths.
C、 Three fifths.
D、 Four fifths.

【正确答案】 B

【答案解析】解析：从“In the United States 40 percent of the people reportedly take vitamin pills．”可知答案为B。

A、 Women who are not breast-feeding their children.
B、 Vegetarian.
C、 People who have much daily product.
D、 All the old men.

【正确答案】 B

【答案解析】解析：从“people who do not eat meat”可知vegetarian符合题意。

A、 Vitamins can help keep people healthy when used correctly.
B、 Millions of people take vitamin pills to improve their health.
C、 People on diet need vitamins.
D、 Large amounts of vitamin pills can prevent some things as cancer and heart disease.

【正确答案】 D

【答案解析】解析：从“The other half uses large amounts in an effort to prevent some things as cancer and heartdisease．Callaway says that there’s no proof that this works”可知这种说法未经证实。the AmericanMedical Association美国医学协会：kidney肾脏：breast-feeding哺乳期。