default template ?

Hi List.
I was wondering how an XSL Stylesheet can be done to treat all nodes in
an XML file if a template doesn't fit.
I mean, if an xml is like
<Row>
	<A>A value</A>
	<B>B value</B>
	<C>C value</C>
</Row>

If I get one template for treating <A> nodes (match = "A"), and one for
<B> nodes, I would like to have some kind of fall back template for the
C nodes which don't have a specific one.
Is this possible ?



Thanks for your patience :)
Regards,
Fabien