这句XML错在那了？

Question

<?xml version="1.0" encoding="utf-8" ?> 
-<menu>
  -<appetizer>
    <soup/>
    <cheese/>
  </appetizer>
  -<entree>
    <duck />
    <chicken/>
  </entree>
  -<dessert>
    <cake/>
    <pie/>
  </dessert>
</menu>

Answer 1

<?xml version="1.0" encoding="utf-8" ?> 
<menu>
  <appetizer>
    <soup/>
    <cheese/>
  </appetizer>
  <entree>
    <duck />
    <chicken/>
  </entree>
  <dessert>
    <cake/>
    <pie/>
  </dessert>
</menu>

Answer 2

去掉<>前面的-号就可以的了