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题库 / Prep2012-CR-58
The cause of the wreck of the ship Edmund Fitzgerald in a severe storm on Lake Superior is still unknown. When the sunken wreckage of the vessel was found, searchers discovered the hull in two pieces lying close together. The storm's violent waves would have caused separate pieces floating even briefly on the surface to drift apart. Therefore, the breakup of the hull can be ruled out as the cause of the sinking.
Which of the following is an assumption on which the argument depends?
Ships as large as the Edmund Fitzgerald rarely sink except in the most violent weather.
Underwater currents at the time of the storm did not move the separated pieces of the hull together again.
Pieces of the hull would have sunk more quickly than the intact hull would have.
The waves of the storm were not violent enough to have caused the ship to break up on the surface.
If the ship broke up before sinking, the pieces of the hull would not have remained on the surface for very long.
果因推理。
果：船被发现时，分裂的两块是在一起的。凶猛的海浪会使得浮在海面上的碎片分离。
因：船分裂不是船下沉的原因。
答案要么在说“船裂片在一起”与“船下沉不是船分裂造成”两件事的因果，要么给出船两块列块还在一起的其他原因，抓住果！
B取非后就给出了另外的原因。
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