You are not providing very much information but let me try to help you.
If you're talking about a standard motorhome or camper trailer then they have a COACH battery. It is designed to provide 12-VDC to such things in the interior as; lights, your 2-way Fridge control circuit board, your temperature control panel, your CO and Fire alarms and such.
Your receptacles are powered by your external AC Power Connector which you will have plugged into your campsite power panel.
With that said, check if the receptacles you are mentioning are part of your GFCI circuit. IF they are then you can just reset the button on the MASTER GFCI receptacle which is usually located inside your bathroom or kitchen area.
If ALL of your receptacles are not working then you need to make sure you do not have a breaker kicked out in your AC_Voltge breaker panel.