2. 职称英语
  3. Such items include smoke detectors, automatic sprinkler systems and fire________

Such items include smoke detectors, automatic sprinkler systems and fire________

游客2025-01-29  33
问题 Such items include smoke detectors, automatic sprinkler systems and fire_________systems as mentioned in the question.
选项 A、signal
B、alarm
C、bell
D、warning
答案 B
解析 warning(警告)，a verbal／written／final warning(口头／书面／最后警告)；alarm(报警，警报，警报器)，a fire／smoke alarm(防火／烟火报警器)；signal(信号，预示)，traffic signal(交通信号灯)；bell(铃，钟)，church bell(教堂的钟声)。所以选项B为答案。
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