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American doctors say that mothers smoke before their 【S1】______ babies are born may slow the growth of their babies
American doctors say that mothers smoke before their 【S1】______ babies are born may slow the growth of their babies
admin
2009-02-15
70
问题
American doctors say that mothers smoke before their 【S1】______
babies are born may slow the growth of their babies 【S2】______
lungs. They say’ reducing lung growth could cause 【S3】______
the babies suffer breathing problems and lung disease 【S4】______
late in life. Doctors in Boston studied 1,100 children. 【S5】______
The mothers of some of the children smoked; the other 【S6】______
Mothers did not. Doctor found out that the lungs of the 【S7】______
children whose mothers smoked were 8% less developed as 【S8】______
the children whose mothers did not smoke, that the 【S9】______
children whose mothers smoked were developed 20% more 【S10】______
cold and breathing diseases than the other children.
选项
答案
smoke前加who或smoke→smoking
解析
smoke用来修饰mothers。
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本试题收录于:
公共英语二级笔试题库公共英语(PETS)分类
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公共英语二级笔试
公共英语(PETS)
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