cover the vent
6 (54.5%)

jam the giant fan
4 (36.4%)

check the shelves for materials to make a tent
5 (45.5%)

ransack the room for materials to burn
1 (9.1%)

put their hoodies' hoods up
9 (81.8%)

closer huddling (all three)...
7 (63.6%)

...on one of the bed things instead of the floor
3 (27.3%)

take selfies with the camera (won't keep them warm, but will pass the time)
0 (0.0%)

Chu Shuzhi could use his strings to rip the control panel off the wall
4 (36.4%)

Chu Shuzhi could use his strings to pull the door off its hinges or the linings off the walls (like he broke into the Hanga caves)
7 (63.6%)

like, NOT close the cover on the OFF switch (Changcheng, ILU)
6 (54.5%)

other
4 (36.4%)

stipend from Dixing
9 (81.8%)

pay from the university
11 (100.0%)

investments from when he first came to Haixing
2 (18.2%)

investments in a lollipop factory, specifically
4 (36.4%)

an alchemical/Midas power
2 (18.2%)

a trust set up by his fellow soldiers from the ancient war that has been held in his name for ten thousand years in the belief that he will return one day
1 (9.1%)

moonlighting as a fashion model
1 (9.1%)

moonlighting as a restaurant chef
0 (0.0%)

secretly a best-selling author of epic historical novels
0 (0.0%)

he's actually a man of fairly modest means
6 (54.5%)

other (please specify in comments)
0 (0.0%)