How long is the accident non-intervention time of passive safety technology？
A: 30 hours
B: 12 hours
C: 24 hours
D: 72 hours
A: 30 hours
B: 12 hours
C: 24 hours
D: 72 hours
举一反三
- How many hours before the departure should you call to ask for cancellation of your flight？ A: 10 hours B: 12 hours C: 18 hours D: 24 hours
- How long do the shop assistants work a day A: 3 hours B: 4 hours C: 5 hours
- 47. How many hours will the applicants work each week? A: A. 16 hours B: B. 18 hours C: C. 20 hours D: D. 24 hours
- How long does an astronaut need to practice in the water to prepare for a two-hour spacewalk? A: ten hours B: twenty hours C: thirty hours D: hundreds of hours
- how long will they stay in the museum of Terracotta Army? A: 1 hour B: 2 hours C: 3 hours D: 2.5 hours