A、<p><span style="font-family: 宋体; font-size: 19px; ">自然人</span></p>
B、<p><span style="font-family: 宋体; font-size: 19px; ">机构</span></p>
C、<p><span style="font-family: 宋体; font-size: 19px; ">团体</span></p>
D、<p><span style="font-family: 宋体; font-size: 19px; ">以上均正确</span></p>