阿摩線上測驗
34 The inspections were conducted to ensure fire safety in relation to fire service installations, ________ of escape, ventilation systems, etc.
(A) practices
(B) means
(C) manners
(D) elevators
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統計： A(28), B(15), C(12), D(17), E(0) #2768365
統計： A(28), B(15), C(12), D(17), E(0) #2768365