13.
M: Excuse me, Madam. Is the air-conditioning on? This room is getting as hot as a furnace.
W: Sorry, sir. A new epidemic called SARS is threatening us right now. As a preventing measure, we are told to let in fresh air by opening the windows and not to use air-conditioners.
Q: What does the woman mean?
正确答案：C
解析：女士所说的“我们被要求开窗通风而不用空调”，表示不开空调是因为接受指示。因此选C。

14.
M: You look quite different from what you used to.
W: Sure. I started exercising regularly 2 years ago and went from 253 pounds to a healthy 160 pounds. And that's the only thing I did not give up halfway.
Q: What do we know about the woman?
正确答案：A
解析：根据女士所说的“从253磅下降至正常的160磅”，可以得知是体重下降。所以选A。