A、<p><span style="font-family: \'Microsoft YaHei\'; font-size: 15px; ">3</span><span style="font-size: 15px; font-family: 宋体;">年</span></p>
B、<p><span style="font-family: \'Microsoft YaHei\'; font-size: 15px; ">1</span><span style="font-size: 15px; font-family: 宋体;">年</span></p>
C、<p><span style="font-family: \'Microsoft YaHei\'; font-size: 15px; ">2</span><span style="font-size: 15px; font-family: 宋体;">年</span></p>
D、<p><span style="font-family: 宋体; font-size: 15px; ">半年</span></p>
A、<p><span style="font-family: 'Microsoft YaHei'; font-size: 15px; ">3</span><span style="font-size: 15px; font-family: 宋体;">年</span></p>
B、<p><span style="font-family: 'Microsoft YaHei'; font-size: 15px; ">1</span><span style="font-size: 15px; font-family: 宋体;">年</span></p>
C、<p><span style="font-family: 'Microsoft YaHei'; font-size: 15px; ">2</span><span style="font-size: 15px; font-family: 宋体;">年</span></p>