如何从以下字符串中删除HTML标签?
<P style="MARGIN: 0cm 0cm 10pt" class=MsoNormal><SPAN style="LINE-HEIGHT: 115%;
FONT-FAMILY: 'Verdana','sans-serif'; COLOR: #333333; FONT-SIZE: 9pt">In an
email sent just three days before the Deepwater Horizon exploded, the onshore
<SPAN style="mso-bidi-font-weight: bold"><b>BP</b></SPAN> manager in charge of
the drilling rig warned his supervisor that last-minute procedural changes were
creating "chaos". April emails were given to government investigators by <SPAN
style="mso-bidi-font-weight: bold"><b>BP</b></SPAN> and reviewed by The Wall
Street Journal and are the most direct evidence yet that workers on the rig
were unhappy with the numerous changes, and had voiced their concerns to <SPAN
style="mso-bidi-font-weight: bold"><b>BP</b></SPAN>’s operations managers in
Houston. This raises further questions about whether <SPAN
style="mso-bidi-font-weight: bold"><b>BP</b></SPAN> managers properly
considered the consequences of changes they ordered on the rig, an issue
investigators say contributed to the disaster.</SPAN></p><br/>
我正在将HTML内容写入Aspose.PDF中,但是PDF中会显示HTML标签。如何去除这些标签?