Refer to the exhibit. Which rule does the DHCP server use when there is an IP address conflict?（） ["The address is removed from the pool until the conflict is resolved.","The address remains in the pool until the conflict is resolved.","Only the IP detected by Gratuitous ARP is removed from the pool.","Only the IP detected by Ping is removed from the pool.","The IP will be shown, even after the conflict is resolved."]
叉车传动部分是由（）等组成。 ["一轴","二轴","过渡","以上都对"]
铁路危险货物包装根据其内装的危险程度划分为三种包装类别：Ⅰ类包装--具有（）危险性。 ["较大","严重","极大","一般"]
综合实践活动是一种以学生的经验与生活为核心的实践性课程。它住重使学生获得直接经验，密切联系学生的日常（），体现对（）和能力的综合运用。
自然失业率
操行评定的原则是什么？
