56. What does the author mean by “the unforgiving nature of tons of onrushing rolling stock” in thethird paragraph?
(A) The heavy weight of iron materials.
(B) The cruelty of a barking hound.
(C) The battle between deer and other animals.
(D) The danger of a fast-moving train.
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統計: A(35), B(40), C(30), D(213), E(0) #2160310
統計: A(35), B(40), C(30), D(213), E(0) #2160310