IELTS と TOEFL の語彙: 死亡率の意味を説明します。
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MORTALITY RATES
US maternal mortality rates higher than other high income countries
Infant mortality rate higher for black mothers than any other race
The modality of mortality in domain names
why do bee die after stinging#facts#shorts
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Mortality rate
Maternal mortality rate surged by 40% in the US. Here's what we know. | USA TODAY
How do the mortality rates in the U.S. compare to other countries?
Infant Mortality in the United States is Surprisingly High
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Infant Mortality rate
