Mostly they can, but it is things like changing from 2 stretcher bearers in an all male navy to 4 bearers per stretcher now that women are aboard that is going to cause a didaster. Not only does it cut the number of wounded that can be moved in a given time in half, but a stretcher carried by 4 is three times as wide as a stretcher carried by 2. That makes passageways and ladders too congested for the firefighters and repair people to get through.
A lot of people on a ship are doing jobs that could be automated. Their secondary assignment to damage control is the real reason they are there, to savbe the ship after it has take 50% casualties. The fact that a woman can lift the 40 pound load required of her nominal position does not mean she will be able to lift the 200 pounds that may be required in a disaster.
SO9
I'm about the same size as Jessica Lynch, and reasonably fit. However, it would be a struggle for me to drag/carry my skinny ten year old son more than a few yards, let alone rescue a grown man or woman. While I'm a great proponent of equal opportunity for women, I don't see how any woman (or perhaps man) of this size belongs in a place of potential combat. There are times when physical size and strength are of critical importance, and to pretend otherwise puts soldiers needlessly at greater risk.