A、<span style="font-size:19px;font-family: 宋体">C</span><span style="font-size:19px;font-family:宋体">型</span>
B、<span style="font-size:19px;font-family: 宋体">A</span><span style="font-size:19px;font-family:宋体">型</span>
C、<span style="font-size:19px;font-family: 宋体">B</span><span style="font-size:19px;font-family:宋体">型</span>