How long is the accident non-intervention time of passive safety technology？ A: 30 hours B: 12 hours C: 24 hours D: 72 hours

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

12. The banking service opens _____. A: around the clock B: 12 hours a day C: 20 hours a day

_________ she _____________ for him for four hours before she finally went to bed at 12?

How many hours are there in a day? A: 10 B: 12 C: 24 D: 36

He is made ______ 12 hours a day. A: work B: to work C: working D: worked

How long can the wrapped sterile packages be kept for A: 4hours B: 12hours C: 24hours D: 7days

The average time between two high waters is 12 hours and 25 minutes because this is the time it takes for ______.

Golden sun shop Business Hours: 8:00 a.m. —9:00 p.m. Sorry Closed for lunch 12:30-1:30 p.m. The shoe shop is open ______ 。 A: for 10 hours a day. B: during the business hours without a break. C: after the lunch hour.

That boss _____ his workers work more than 12 hours a day. A: made B: asked C: told