45. According to the passage, what constitutes a risk while climbing Mount Everest?
(A) Bringing needed equipment for extreme weather
(B) Packing too much supplies and warm clothes
(C) Attempting to summit without the Sherpa guides
(D) Climbing with a group of people
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統計: A(19), B(18), C(204), D(20), E(0) #3105333
統計: A(19), B(18), C(204), D(20), E(0) #3105333