某三相电力变压器带电阻电感性负载运行，负载系数相同的情况下，cosΦ2越高，电压变化率ΔU（）。 越小。 越大。 不变。 无法确定。
What IBM resource is a search engine used to match hardware and software requirements to help you maximize your sales opportunities？ （） IBM Solutions and Options Guide。 IBM Configuration and Options Guide。 IBM Sizing Guides。 IBM Server Prove。
糖皮质激素类药抗哮喘的机制有哪些？常用的药物有几个？
按照股票的持有人享有的股利和承担的责任的角度，股票可以分为（）。 无面额股票。 面额股票。 优先股。 普通股。
A retail company needs to add more servers to their Citrix farm. They are considering 1U servers and High End Enterprise Servers. Their current need is internal storage only， with the possibility to attach to a SAN later. Which TWO of the following features of the IBM x366 would exceed the 1U server’s capabilities？（） Ability to add expansion cards。 More Citrix users per server reduces management costs。 Ability to run on both 110V and 220V power input。 Ease of deployment due to infrastructure integration。 Physical sharing of the SCSI Storage Expansion Unit。 Fewer cables and better cable management due to modular switches。 Integrated HBAs for SAN connectivity。
筒式封堵头最易损坏的部件是（）
