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  3. Infant mortality in the United States is higher than 16 other nations,

Infant mortality in the United States is higher than 16 other nations,

游客2025-01-03  1
问题    Infant mortality in the United States is higher than 16 other nations,          【M1】______
   with 11.5 babies out of 1,000 die before age 1.  A report based on 【M2】______
   international figures and released out last week by the Population Reference    【M3】______
   Bureau (PRB) in Washington D. C. rank the United States in 17th place among     【M4】______
   nations with the lowest infant mortality rates; Finland, Japan and Sweden lead
   the ranking with rates of less than 7 per 1,000.
   Especially in countries with low infant mortality rate, the statistics          【M5】______
   reflect the incident of genetic defects leading to death. In the US, say        【M6】______
   some researchers, the statistics also provide a social indicator. Says Brian
   McCarthy of the Centres of Disease Control in Atlanta, "Infant mortality
   rate is affected by social, medical and environmental policies."
   The US statistics show that 19.6 black babies per 1,000 die before
   age 1, comparing with white babies at 10.1 per 1,000. "The real cause is        【M7】______
   probably poverty," says PRB’S Carl Haub, "That’s represented in the
   rates for low birth weight babies among black."                    【M8】______
   Infant mortality closely relates to low birth weight  which, Haub  【M9】______
   says, results in a variety of factors, including poor diet and inadequate       【M10】______  
   medical care. [br] 【M5】
选项
答案 with∧low infant mortality rate—加入a
解析 在此为可数名词，因此要加不定冠词。
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