複選題
25. Officers must stay ________ at all times during patrol.
(A) vigilant
(B) watchful
(C) alert
(E) observant
(D) attentive
答案:登入後查看
統計: A(71), B(154), C(162), D(118), E(119) #3437588
統計: A(71), B(154), C(162), D(118), E(119) #3437588