我国旅客列车的种类分哪几种？
提供互联网新闻信息服务，应当遵守宪法、法律和行政法规，坚持（）的方向，坚持（）导向，发挥（）作用，促进形成积极健康、向上向善的网络文化，维护国家利益和公共利益。
缺陷责任期的开始起算日期为（）。 ["工程完工之日","提交竣工验收申请之日","通过竣工验收之日","竣工验收后30天"]
Which of the following answers are correct characteristics of microsegmentation, in the context of a Local Area Network (LAN)?（） [" Dedicated paths between sending and receiving hosts are established."," Multiple subnetwork broadcast addresses are created."," Multiple ARP tables are needed."," The decrease in the number of collision domains."," Broadcast domains are enhanced."," Additional bandwidth is used to connect hosts."]
冻害
静物画起源于（）作为题材独立的绘画门类才确立和流行起来。
