阿摩線上測驗
30. The _____ plays the major role for generating the alternating torsional loads on shafting
system.
(A) compressor
(B) propeller
(C) pully
(D) rudder
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統計： A(72), B(420), C(34), D(38), E(0) #3307874
統計： A(72), B(420), C(34), D(38), E(0) #3307874
