Maternal deaths and infant mortality are loosely connected with the patterns of reproducti

A societys infant mortality rate is an accepted indicator of that societys general health

以下哪个是孕产妇死亡率（maternal mortality ratio)的分母？A.某地同年孕妇数B.某地同年全体育

What is this news item mainly about？A．New findings of the reason for sudden infant death.B

What does the news item mainly report？A．The maternal mortality remains a threat nowadays.B

The English names used for relatives do not distinguish between paternal and maternal relatives, nor between relatives according to（).

共用题干 "Much of the sickness and death attribu