Infant ________ rate is the number of infants dying before reaching one year of age, per 1,000 live births in a given year. A mortality B incidence C disability D survival

Infant ________ rate is the number of infants dying before reaching one year of age, per 1,000 live births in a given year.
A
mortality
B
incidence
C
disability
D
survival

出自：山东医学高等专科学校大学英语（高起专）

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