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异步电动机对称三相绕组在空间位置上彼此相差（）。
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在改变给定值的控制系统中，评定动态过程品质的指标有（）。 ①超调量σp； ②衰减率φ； ③最大动态偏差emax； ④上升时间tr； ⑤振荡次数N； ⑥静态偏差ε。
患者男性，78岁，因车祸致骨盆骨折、肋骨多发骨折、肺挫伤入院，入住ICU时查体：血压80／50mmHg，口唇发绀，双肺可闻及湿啰音，心率129次／分，未闻及杂音，四肢冷。患者引起休克的原因可能是（）
符合氮氧化物急性中毒的临床表现是（）。
You work as the IT professional in an international company which is named Wiikigo. You are experiencedin implementing and administering a network operating system. You are specialized in deploying servers，configuring Windows Server 2008 Terminal services and network application services， and configuring aweb services infrastructure. There are two servers named FC01 and FC02 in your company. And WindowsServer 2008 Enterprise is run by the server. The Failover Clustering feature is installed on the server. Theserver is configured as a two-node cluster. An application named APP01 is run by the cluster. The company work time is from 09：00 to 17：00. You need to make sure that APP01 can be accessed duringthese hours. FC01 is configured as the preferred owner for APP01. And you are required to preventfailback of the cluster during business hours. Which action should be performed to achieve the goal？（）
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