47. What does “that” in the second paragraph refer to?
(A) Anthropology.
(B) Human origin.
(C) Life expectancy.
(D) The authority.

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統計： A(23), B(53), C(346), D(21), E(0) #717763

詳解 (共 3 筆)

#3819954
The typical person w...
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#2193478
排版整個亂掉連第二段在哪裡都看不出來
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#3510192

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The typical person was fortunate to reach 40. Beginning in the 19th century, that slowly changed. Since 1840, life expectancy at birth has risen about three months with each passing year. In 1840, life expectancy at birth in Sweden, a much-studied nation owing to its record-keeping, was 45 years for women; today it’s 83 years. The United States displays roughly the same trend. When the 20th century began, life expectancy at birth in America was 47 years; now newborns are expected to live 79 years.

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