81. Breast-feeding, according to the new study, can ____.

1. ensure babies physical and physiological health
2. encourage the interaction between mother and child
3. provide intelligence benefits for children
4. monitor the children's IQ for a long time

82. In the test at Belarrussian hospitals and clinics, ____.

1. the mothers in the breast-feeding encourage group were smarter than the other group
2. half percent of children were breast-fed at 3 months in the breast-feeding encourage group
3. only children in the breast-feeding encourage group were followed up in the next 6 years
4. the children in the breast-feeding encourage group were tested higher in intelligence

83. The design of the study was intended to ____.

1. give children better chance for brain development and intelligence
2. determine if breast-feeding can lead to brain development and intelligence benefits
3. remove the confusion that mothers' characteristics have influence on their babies
4. encourage mothers to breast-feed their babies as long as they can

84. The mothers who prefer to breast-feed their babies ____.

1. are more intelligent than those who don't
2. take more time interacting with their children
3. spend more money on their children's education
4. pay more attention to their children's scores

85. The pediatrics recommends that ____.

1. mothers spend more time interacting with the babies
2. a kind of hormone in the milk be absorbed by the infants
3. children who are breast-fed enjoy many health advantages
4. healthy mothers exclusively breast-feed their babies for half a year

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