Scalability is provided in the server farm module by which of the following design strategies?（） [" up to 10Gbps of bandwidth at the access level"," redundant servers at the access level"," modular block design at the access level"," high port densities at the access level"]
邮政法规定的包裹是什么？
子曰："君子易事而难说也：说之不以道，不说也；及其使人也，器之。小人难事而易说也；说之虽不以道，说也；及其使人也，求备焉。"
翻译古文
气割用氧气的纯度一般要求在（）以上。 ["75%","85%","90%","99.5%"]
Which three of these Metro Ethernet services map to E-Line services that are defined by the MEF？ （） [" Ethernet Private Line"," Ethernet Wire Service"," Ethernet Relay Service"," Ethernet Multipoint Service"," Ethernet Relay Multipoint Service"]
企业生产产品2000件，单位价格20元/件，单位变动成本12元/件，固定成本为20000元，现单位价格提高10%，求其对保本点的影响？
