guess what NUS is using now for mass testing for mcq.
like a voting device used in american funniest home video for voting the funniest video.close up of it (and it cost $100)
After squeezing into lt 25, to find out that that there was another lecture gg on. then walking to lt 27, to sit for only about 5 mins and running off to lt 22 to book a seats or else sit on the floor. and to test out this new gadget and have around 30 mins of lecture.