听力原文:W: Let's look at the survey on consumer confidence we conducted last week. How reliable are these figures? M: They have a 5% margin of error. Q: What are the speakers talking about? (17)
【单选题】听力原文:W: How many people survived this fire? M: There were 2 men on the first floor and 3 women with a child on the second floor, but no one was badly hurt. Q: How many people were killed in the fire? ...