∵|2-x|=3,
∴2-x=±3
∴x=2+3或x=2-3.
故填:2-3或2+3.
()是先控制战术原则的运用。
A.对罐体进行冷却
B.对化工装置冷却降温
C.对建筑结构进行冷却保护
D.转移火场内危险物品
E.重点突破消除险情
-Are you sure you can do well in the final exam?
-_____________, I’ve got everything ready.[ ]
A. No, I’m not sure
B. It’s hard to say
C. Yes, I think so
D. I hope not