阿摩線上測驗
41. What was the main reason the author does not like the old tree-climbing techniques?
(A) They were too difficult for inexperienced climbers.
(B) The trees in Hopkins Forest were too tall for the ropes.
(C) They required expensive equipment and long training.
(D) Only one person could go up at a time, limiting group learning.
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統計： A(25), B(28), C(29), D(102), E(0) #3710465
統計： A(25), B(28), C(29), D(102), E(0) #3710465
