Pilot organizations deploying a Portable Pilot Unit should make sure the systems they use are _____ in good working order.
Aprevented
Bprotracted
Cmaintained正確答案
Dmanipulated
答案與詳解
為什麼答案是 C
maintain in good working order 是英文固定搭配，意為「維持良好運作狀態」，是設備維護的標準用語，完全符合 PPU（可攜式引水設備）語境。
考點：阻止≠維持考點：搭配錯誤考點：固定搭配考點：操縱≠維護
載入中…
