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44.The security guards carefully patrol around the warehouse at __________ throughout the night.
(A) once
(B) odds
(C) intervals
(D) least
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統計： A(8), B(15), C(33), D(5), E(0) #666414
統計： A(8), B(15), C(33), D(5), E(0) #666414
詳解 (共 2 筆)
柯文容
#1488043
patrol （尤指士兵或員警）巡邏，巡查
at intervals 每隔（一定時間或距離）
ex:發生火災時，警報器每隔15秒鳴響一次。 In the event of fire, the alarm will sound at 15-second intervals/at intervals of 15 seconds.
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