Probably not all the attractions. You could hit most of the more popular rides in both parks I think. One option is to buy an Express Pass which should help tremendously. Do some research to see which rides you really want to do.
IMHO the attractions not to miss (in no particular order):
Islands of Adventure
Hulk
Spiderman
Jurrasic Park
Dueling Dragons.
Universal Studios
Jimmy Neutron Shrek
The Mummy
Jaws
Men in Black
The Simpsons
The Terminator
Much of this depends on how old any children are that are going.