腺样体肥大行纤维鼻咽镜检查时，在鼻咽顶部和后壁可见表面有________淋巴组织。
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20世纪20年代以后，我国教育界掀起了声势浩大的“（）”运动，反对教会教育。
《动车组列车服务质量规范》列队出（退）勤（乘）时，按规定线路行走，步伐一致，箱（包）在同一侧。
A. 正确
B. 错误
You are about to migrate a customer network to use a VSS. Which of these statements is true about a VSS？ （）
A. The VSS switch must be the root bridge for all VLANs and is automatically designated
B. The VSS switch is defined in RFC 4318 as a managed object
C. The PAgP+ or LACP protocols are used to maintain the operational state of the VSS devices
D. A VSS interoperates with a virtual port channel
E. The 802.1Q or ISL protocols are used to maintain the operational state of the VSS devices
F. A VSS increases the size of the spanning-tree domai
事件上报必须要满足Time To Trigger指示的时间段才能触发上报，否则UE不会上报。引入Time To Trigger也是用于防止抖动引起虚报。（）需要考虑。
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