阿摩線上測驗
44 Attach the ________ to the fire hose before activating the water supply.
(A) capsule
(B) trigger
(C) nozzle
(D) hurdle
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統計： A(2), B(14), C(29), D(2), E(0) #3462368
統計： A(2), B(14), C(29), D(2), E(0) #3462368
