30. _________ means a crew member of the watch going around the vessel at certain intervals so that an outbreak of fire may be promptly detected.
(A) Fire mains
(B) Fire nozzle
(C) Fire patrols
(D) Fire detectors

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統計: A(41), B(46), C(496), D(102), E(0) #3033230

詳解 (共 2 筆)

#5743598
30. __________ 是指值班的...
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#6166635
A) 消防總管
B) 消防噴嘴
C) 消防巡邏
D) 火災探測器
A) Fire mains
(B) Fire nozzle
(C) Fire patrols
(D) Fire detectors
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