【简答题】It has been ______ by dead-bolt locks, security chains, electronic alarm systems and trip wires________ a police station or private guard firm. Many _______ families have sliding glass doors on their ...
【简答题】Spot Dictation Directions: Please listen to the recording and fill in the missing words in the following paragraphs. 音频: It has been replaced by dead-bolt locks, security chains, ______ (1) alarm syst...
【简答题】It has been ______ by dead-bolt locks, security chains, electronic alarm systems and trip wires________ a police station or private guard firm. Many _______ families have sliding glass doors on their ...