对便乘人员乘车区间、日期或便乘证与报单是否相符情况不清楚或不掌握;乘务员未核对乘车人员的“三证”或“三证”不符未发现,属于()问题。 ["红线","A1","A2","B"]
动力装置和车轮之间无()联系,便于总体布置及维修。 ["硬度","强性","刚性","弹性"]
Which of these statements about PIM join messages in classic PIM-SM is correct?() ["PIM join messages are sent every 60 seconds to refresh the upstream router’s mroute state for the multicast tree.","Routers send a PIM join acknowledgement in response to each PIM join message received from a downstream router.","PIM join messages are only sent when the multicast distribution tree is first being established.","PIM join messages are sent every three minutes to refresh the upstream router’s mroute state for the multicast tree."]
EIGRP中的SIA是什么意思?
别构效应(变构效应)
某中学推出了“个性课程”体系,高中开设了选修课23门,活动课34门,初中活动课35门。除了必修课之外,将原来的选修课和活动课分化为5个层次的“个性课程”,即“讲座型”、“发展型”、“课题型”、“竞赛型”和“补缺型”。每周按文、理科及综合科开设4至5个讲座,以社会热点和传播新信息为主,聘请专家学者担任主讲,学生可自由选择参加学习。对学有余力和有特长的学生,通过“组织发展兴趣小组”、“导师带研究生”、“强化训练”等各种方式,施以个性化教育。而对个别学有困难的学生进行学业再辅导,帮助他们顺利完成高中的学习任务。试用学过的课程理论分析这所学校的课程。