問題詳情
80. Regarding the history of lock development, which of the following statements is
incorrect?
(A) Wooden locks were the earliest locks, primarily using wooden pins and bamboo
sticks to open doors.
(B) Metal locks first appeared in the Bronze Age, using plate springs to unlock.
(C) Tumbler locks are opened by turning the lock cylinder with a key.
(D) Electronic locks primarily use mechanical structures to unlock.
參考答案
答案：D
統計：A:0,B:0,C:0,D:2,E:0
難度：計算中