A、<p><span style="font-family: 宋体; line-height: 24px; ">每半年；2/3</span></p>
B、<p><span style="font-family: 宋体; line-height: 24px; ">每年；1/2</span></p>
C、<p><span style="font-family: 宋体; line-height: 24px; ">每年；2/3</span></p>
D、<p><span style="font-family: 宋体; line-height: 24px; ">每半年；1/2</span></p>