皮皮学，免费搜题
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搜题
【单选题】
下列新生儿胎便的特点哪错误的A.
新生儿12小时内排出胎便
B.
由肠粘膜脱落的上皮细胞、羊水及消化液组成
C.
墨绿色
D.
约2～3天排完
E.
早产儿胎便排出常延迟
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皮皮学刷刷变学霸
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【单选题】Every day 25 million US children ride school buses. The safety record for these buses is much better than for passenger cars; but nevertheless, about 10 children are killed each year riding on large s...
A.
School buses killed the smallest number of children in America.
B.
School buses are much safer than passenger cars in America.
C.
Outside buses in loading zones killed the most children in America.
D.
Children in America mainly take school buses to and from school.