【正确答案】 D

【答案解析】[听力原文]
W: So how do you like living in the renovated dorms?
M: They aren"t much different than the old dorms, just some new panes and windows. The windows are nice so they shut off the noise really well. The street"s just outside, but I can barely hear the traffic.
W: Urn, they must be good windows, I bet they must have double panes of glass; they shut off a lot of noise that the single pane wouldn"t stop.
M: Yeah, I wish I had something similarly effective between me and my neighbor"s room. Sometimes he turns up the music so loud that I have trouble getting into sleep. Anyway I guess I"m better off than the people who"ll be moving into the new dorms. Did you see how thin the walls that they put up between those rooms are?
W: I haven"t seen them but I did read something about them in the campus newspaper. They are supposed to be better than the thick concrete wall you"ve got here.
M: Better? How?
W: Well, what they do is separating each room with two thin layers of plasterboards and each one is nailed to a different frame. That way they vibrate independently.
M: Oh, I see, so the sound from one room doesn"t just vibrate the wall and go directly into the next room. There is a gap between two layers of wall.
W: That"s right.
M: Well, I"m still stuck with this neighbor and I am not sure what to do.
W: You know a heavy bare wall doesn"t help. You should hang something up like some fur rags or some decorated curtains. That would act like a kind of a second wall and absorb some sound. I got some extras you can use.
M: I"d appreciate it. Anything to get a good night sleep.

Why does the man think he is better off than the people who"ll be moving into the new dorms?