《一千零一夜》的第一个故事主人公的身份是？（） ["商人","农民","王后","诗人"]
What are two QoS mechanisms that are used to prevent packet loss？（） ["header compression","payload compression","low latency queuing （LLQ）","weighted random early detection （WRED）","traffic policing","traffic shaping"]
最强的有机酸是（） ["甲酸","乙酸","丙酸","丁酸"]
How many messages does internet Key Exchange use to negotiate SA characteristics when running inmain mode？（） ["3 messages","6 messages","4 messages","2 messages","5 message"]
太平天国起义中，用来发动、组织群众的宗教是（）。 ["教","太平道","拜火教","拜上帝教"]
3~6岁学前儿童每日膳食中碳水化合物提供的热量，应占总热量的（）
