医学:

“NCA”是“National Council on Aging”的缩写，意思是“全

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“NCA”是“National Council on Alcoholism”的缩写，意思

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“NCE”是“National Counselor Examination for

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“NELHI”是“National Electronic Library for Health

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“NeLH”是“National electronic Library For Health,

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“NES”是“National Enhanced Service”的缩写，意思是“国

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“NFI”是“National Fraud Initiative”的缩写，意思是“国

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“NGEDC”是“National Genetics Education and

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“NHAIS XX”是“National Health Applications and

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“NHLS”是“National Health Laboratory Service”的缩写

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