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  3. Homeowners: are you aware that there’s an all-new electronic invention call

Homeowners: are you aware that there’s an all-new electronic invention call

游客2023-11-19  20
问题      Homeowners: are you aware that there’s an all-new electronic invention called "the bug"? It is sensitive to the sounds of a burglar at a door or window. Before the intruder can enter your house or apartment house, he’s met with the shriek of a siren, and lights flash on inside and outside the house. Now the surprise and shock of this instantaneous alarm would frighten off any intruder. Just one "bug" sound-sensitive unit centrally located can protect up to 2500 square foot. It’s no longer necessary to electronically wire up every window and door or attach individual alarms to every window and door. You can install the "bug" yourself in a matter of minutes .So if you’re worried that your home is not equipped to stop an intruder from breaking in, call toll free for a brochure on the "bug". Call 800 331 - 100 [br] The bug is a(n) ______.
选项 A、electronic insect
B、alarm clock
C、burglar alarm
D、safety lock
答案 C
解析
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