阿摩線上測驗
25. The shaft ________ provides considerable impacts of the whirling and tensional modes of
vibrations.
(A) diameter
(B) position
(C) angle
(D) length
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統計： A(558), B(240), C(178), D(151), E(0) #3126426
統計： A(558), B(240), C(178), D(151), E(0) #3126426
