A、<p><span style="font-family: 宋体; font-size: 13.333333969116211px; line-height: 20px; ">1/2</span></p>
B、<p><span style="font-family: 宋体; font-size: 13.333333969116211px; line-height: 20px; ">1/3</span></p>
C、<p><span style="font-family: 宋体; font-size: 13.333333969116211px; line-height: 20px; ">2/3</span></p>
D、<p><span style="font-family: 宋体; font-size: 13.333333969116211px; line-height: 20px; ">1/4</span></p>