You can use subscript and superscript
In Word, Font -> tick subscript / superscript
e.g.1 use subscript
e.g.2 use superscript
e.g.3 use both
2009-10-14 16:38:52 補充:
For e.g. 3, If you want both numbers on the same position, you can use equation editor in Word
Insert -> Object -> Mircosoft Equation Edition 3.0