阿摩線上測驗
13. Engineers performed a thorough _____ of the braking system after the incident.
(A) inspection
(B) instruction
(C) installation
(D) interruption
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統計： A(33), B(16), C(6), D(1), E(0) #3492421
統計： A(33), B(16), C(6), D(1), E(0) #3492421
