Final answer:
The overwing exits and the rear exits can be used as a last resort during an emergency on an Airbus.
Step-by-step explanation:
During an emergency on an Airbus, there are two exits that can be used as a last resort: the overwing exits and the rear exits.
The overwing exits are located on either side of the aircraft's wings. These exits are designed to provide a means of escape in case the front and rear exits are inaccessible or blocked.
The rear exits are located at the back of the aircraft. They are typically used for boarding and disembarking, but in an emergency, they can be opened to evacuate passengers.