A、<p><span style=" font-family: 宋体;">每</span><span style="font-family: \'Microsoft YaHei\'; ">2h</span><span style=" font-family: 宋体;">组织一次</span></p>
B、<p><span style="font-family: 宋体; ">每日至少一次</span></p>
C、<p><span style="font-family: 宋体; ">每周至少一次</span></p>
D、<p><span style="font-family: 宋体; ">每月至少一次</span></p>
A、<p><span style=" font-family: 宋体;">每</span><span style="font-family: 'Microsoft YaHei'; ">2h</span><span style=" font-family: 宋体;">组织一次</span></p>