A、<span style="font-size:16px;font-family:宋体">寄生关系</span>
B、<span style="font-size:16px;font-family:宋体">共生关系</span><span style="font-size:16px;font-family:'Times New Roman','serif'"> </span>
C、<span style="font-size:16px;font-family:宋体">拮抗关系</span>
D、<p style="margin-bottom: 8px"><span style="font-size:16px;font-family:宋体">互生关系</span></p><p><br/></p>