問題詳情
【題組】74. What do we know about ultramarathon runners?
(A) It is difficult for them to commit to ordeals.
(B) They run long distances to build up their endurance.
(C) They train within their limits.
(D) They train in mild weather conditions, carrying heavy backpacks.
參考答案
答案：B
難度：非常困難0
統計：A(0),B(0),C(0),D(2),E(0)