A、<p><span style="font-family: 宋体; font-size: 19px; ">50</span></p>
B、<p><span style="font-family: 宋体; font-size: 19px; ">100</span></p>
C、<p><span style="font-family: 宋体; font-size: 19px; ">150</span></p>
D、<p><span style="font-family: 宋体; font-size: 19px; ">200</span></p>