複選題
25. Officers must stay ________ at all times during patrol.
(A) vigilant
(B) watchful
(C) alert
(E) observant
(D) attentive
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統計: A(71), B(152), C(160), D(116), E(118) #3437588
統計: A(71), B(152), C(160), D(116), E(118) #3437588