問題詳情

【題組】69. The underlined "it" ( paragraph 4 ) refers to________
(A)a great push
(B)the idea of living beyond the present life span
(C)the idea of living from 200 to 300 years
(D)the conservative estimate

參考答案

答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)