乘务员晚出场，属于（）问题。 ["红线","A1","A2","B"]
体育学习
What is the first thing that happens when IPv6 is enabled on an interface on a host？（） ["A router solicitation is sent on that interface.","There is a duplicate address detection on the host interface.","The link local address is assigned on the host interface.","A neighbor redirect message is sent on the host interface."]
Which of these correctly identifies a difference between the way BPDUs are handled by 802.1w and 802.1D？ （） [" 802.1D bridges do not relay BPDUs."," 802.1w bridges do not relay BPDUs."," 802.1D bridges only relay BPDUs received from the root."," 802.1w bridges only relay BPDUs received from the root."]
重介质选煤的基本原理是（），即浸没在重介质中的颗粒受到的浮力等于颗粒所排开的同体积的介质重量。 ["牛顿定律","阿基米德原理","勾股定律","二八定律"]
与政府和市场相比，第三部门在办学上有何优势？
