People in New York________. 查看材料
A. don"t care about emergencies
B. are used to alarm
C. are attracted by sounds
D. don"t hear loud noises
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A. amateur
B. special
C. professional
D. authoritative
How does the author relate to sounds at night？ 查看材料
A. He imagines sounds that do not exist，
B. He overstates quiet sounds.
C. He thinks taps should be turned off.
D. He believes it"s rather quiet at night.
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A. committee
B. employee
C. guarantee
D. disagree
登高工具外表检查周期为每月一次，静负荷试验周期为一年或半年一次，试荷时间为()。
A. 1min
B. 5min
C. 10min
D. 15min
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