<閱讀測驗>[題組:第48題到第51題]51. Which of the following devices may be improved with the researchers’ findings? (A) Smoke detectors. (B) Security cameras. (C) Electric bug killers. (D) Fire extinguishers.
答案
答案:(A)。略解:文中提研究應用“add roughness to alarm sounds”,煙霧探測器(smoke detectors)是報警裝置,可改進;安全攝像頭(B)、電滅蟲器(C)、滅火器(D)與報警聲音無關,A正確 報錯 ChatGPTDeepSeek