問題詳情
【題組】48 How do animals maintain their naturally given state of health and vigor?
(A) They take regular exercise.
(B) They receive medical treatments.
(C) They instinctively eat the right foods.
(D) They knowingly ingest healthy substances.
參考答案
答案：C
難度：適中0.4
統計：A(1),B(1),C(2),D(1),E(0)