es.htm :
<head><title>Esercizi 1</title></Head>
<p><table width=100%><tr><td><b>Esercizi - 1</b></td><td align=right>pag. 1 </td></tr></table></p>
<p>
<table width=100%><tr><td valign=top width=2%><b>
1 </b></td><td><iframe frameborder=0 src=
http://macosa.dima.unige.it/om/esr/num/1_8.htm
width=100% marginwidth=0 marginheigth=0 scrolling=no height=160>
</iframe></td></tr></table>
<table width=100%><tr><td valign=top width=2%><b>
2 </b></td><td><iframe frameborder=0 src=
http://macosa.dima.unige.it/om/esr/num/3_2.htm
width=100% marginwidth=0 marginheigth=0 scrolling=no height=160>
</iframe></td></tr></table>
<table width=100%><tr><td valign=top width=2%><b>
3 </b></td><td><iframe frameborder=0 src=
http://macosa.dima.unige.it/om/esr/num/3_7.htm
width=100% marginwidth=0 marginheigth=0 scrolling=no height=160>
</iframe></td></tr></table>
<table width=100%><tr><td valign=top width=2%><b>
4 </b></td><td><iframe frameborder=0 src=
http://macosa.dima.unige.it/om/esr/num/3_3.htm
width=100% marginwidth=0 marginheigth=0 scrolling=no height=160>
</iframe></td></tr></table>
<table width=100%><tr><td valign=top width=2%><b>
5 </b></td><td><iframe frameborder=0 src=
http://macosa.dima.unige.it/om/esr/num/1_9.htm
width=100% marginwidth=0 marginheigth=0 scrolling=no height=160>
</iframe></td></tr></table>
<table width=100%><tr><td valign=top width=2%><b>
7 </b></td><td><iframe frameborder=0 src=
http://macosa.dima.unige.it/om/esr/app/2_1.htm
width=100% marginwidth=0 marginheigth=0 scrolling=no height=160>
</iframe></td></tr></table>
</p>
Che cosa apparirebbe aprendo es.htm: