A、<p><span style="font-size: 10.5pt; font-family: 宋体;">四环三萜</span></p>
B、<p><span style="font-size: 10.5pt; font-family: 宋体;">五环三萜</span></p>
C、<p><span style="font-size: 10.5pt; font-family: 宋体;">螺甾烷醇型</span></p>
D、<p><span style="font-size: 10.5pt; font-family: 宋体;">强心甾烷型</span></p>
E、<p><span style="font-size: 10.5pt; font-family: 宋体;">达玛烷型</span></p>