听力原文:W: Professor Nelson, could you please turn up the temperature here? I'm having a
M: Yeah, I understand, but I don't control the thermostat. Tell you what, I'll talk to maintenance about it after class. In the mean time, I suggest you put on a sweater if you brought one.
Q: What does the man imply?
(19)
A.He can't do anything about it.
B.The temperature is just suitable for him.
C.He will ask the maintenance for help.
D.The woman should bring more clothes.