阿摩線上測驗
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：登入後查看
統計： A(54), B(14), C(15), D(23), E(0) #1351405
統計： A(54), B(14), C(15), D(23), E(0) #1351405
詳解 (共 3 筆)
Angus Lu
#1437545
煙霧探測器
1
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