Before entering a burning building, firefighters must check their oxygen ___ to ensure they have enough air supply.
Adistinguisher
Bcylinder正確答案
Cextinguisher
Dcleaner
答案與詳解
為什麼答案是 B
cylinder 意為圓筒、鋼瓶，oxygen cylinder 即「氧氣瓶/氧氣鋼瓶」，是消防員 SCBA（自給式呼吸器）的核心裝備。
考點：非標準字考點：氧氣瓶考點：滅火器陷阱考點：不相關字
載入中…
