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【Unit 2 posttest】 Today， on the other hand， life ________ has been extended to 74， thanks in large part to the conquest of the acute infectious disease through improved sanitation， better distribution and storage of foods， and the introduction of immunization and antibiotics.

发布于 2021-03-27 09:01:37

【单选题】
A time
B period
C expectancy
D anticipation

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退役熬夜冠军 2023-03-27

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