life expectancy at birth是什么意思
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akiss 共回答了10个问题
|采纳率100%- life expectancy at birth
平均预期寿命;
出生时预期寿命;
出生时的预期寿命;
人均预期寿命
Life expectancy at birth has risen from 52 years in 1960 to 72 now.
平均寿命由1960年的52岁上升到今天的72岁.
手机提问的朋友在客户端右上角评价点【满意】即可. - 1年前
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