1.A、B是一圆形道路的一条直径的两个端点,现有甲、乙两人分别从A、B两点同时沿相反方向绕道匀速跑步(焦化行业准入条件甲、乙两人的速度未必相同),假设当乙跑完100米时,甲、乙两人第一次相遇,当甲差60米跑完一圈时,甲、乙两人第二次相遇,那么当甲、乙两人第十二次相遇时,甲跑完多远?( )超级解霸2000 A. 3360米 B. 6圈 C. 3320米 
汤料成分对白方腐乳保质的影响袁华伟;易小妹;杨粟平;李岳衡;尹礼国【摘 要】The effect of compositions of soup on the quality of white sufu were studied,which pickled sufu were cultured in different soup at 37 ℃ for 14 days. Total acid, a