問題詳情
複選題
23.More than 100 remote-controlled were installed ______ near the convention center where the UN
convention is to take place.
(A) security cameras
(B) bodycams
(C) surveillance cameras
(D) save monitors
(E) closed-circuit televisions
參考答案
答案：A,C,E
統計：A:91,B:32,C:91,D:48,E:46
難度：困難