Questions 11—13 are based on the following dialogue about travel information. You now have 15 seconds to read Questions 11—13. How many people in a group

A．75 percent of people in the online poll had no objections to anyone using laptops, net books and cell phones in the bathroom.
B．Nearly all of Americans think cell phone use is impolite during religious activities.
C．90 percent of people in the online poll admitted they would be unhappy if they were given an online gift wish.
D．30 percent of people in the online poll believe that people should get in touch with each other frequently because of the demand of business.

A．It is easy for people to find 15 -30 minutes to have a nap every day.
B．A caffeine nap is bad for our health.
C．When we have a nap less than 30 minutes, we can avoid getting into deeper stages of sleep.
D．If we have a nap in the afternoon, we will not sleep at night.