阿摩線上測驗
38. According to the passage, how many days may an explorer spend climbing up and then getting back down Angel Falls?
(A) Half day.
(B) One and a half days.
(C) Nine and a half days.
(D) Eleven days.
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統計： A(24), B(41), C(81), D(74), E(0) #3060420
統計： A(24), B(41), C(81), D(74), E(0) #3060420
