名词解释题PTC陶瓷
名词解释题
PTC陶瓷
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相关考题:
WhichisabenefitofusingtheIBMDS8000FlashCopySE(PTC-SE)() A.FlashCopySE(PTC-SE)ismuchfasterthanthetraditionalDS8000full-volumeFlashCopyB.FlashCopySE(PTC-SE)alsosupportsbackgroundcopyC.FlashCopySE(PTC-SE)isoptimizedforuseincaseswhereahighpercentageofthesourcevolumeisupdatedduringthelifeoftherelationshipD.theadditionalcapacityrequiredforFlashCopySE(PTC-SE)mustonlybeplannedfordatawhichischangedonthesourcevolumeduringhostI/Otransaction
PTC的描述,哪项是错误的()A、PTC是一种自上而下的胆管直接造影方法,与ERCP类似B、肝内胆管扩张时,成功率可达90%左右C、适合于较重黄疸的鉴别和病变的定位D、PTC是一项损伤性检查技术E、PTC可能会出现胆汁外漏、出血等并发症
Which is a benefit of using the IBM DS8000 FlashCopy SE (PTC-SE)()A、FlashCopy SE (PTC-SE) is much faster than the traditional DS8000 full-volume FlashCopyB、FlashCopy SE (PTC-SE) also supports background copyC、FlashCopy SE (PTC-SE) is optimized for use in cases where a high percentage of the source volume is updated during the life of the relationshipD、the additional capacity required forFlashCopy SE (PTC-SE) must only be planned for data which is changed on the source volume during host I/O transaction
单选题Which is a benefit of using the IBM DS8000 FlashCopy SE (PTC-SE)()AFlashCopy SE (PTC-SE) is much faster than the traditional DS8000 full-volume FlashCopyBFlashCopy SE (PTC-SE) also supports background copyCFlashCopy SE (PTC-SE) is optimized for use in cases where a high percentage of the source volume is updated during the life of the relationshipDthe additional capacity required forFlashCopy SE (PTC-SE) must only be planned for data which is changed on the source volume during host I/O transaction
多选题关于PTC制热模块的描述正确的有()A当两个PTC档位接触器都闭合时为PTC制热的三挡B当两个PTC档位接触器其中一个闭合时为PTC制热档位的一档或二挡C当温度超过90℃时,PTC制热模块内的温度开关将同时切断两个PTC档位接触器的供电D空调控制面板控制PTC档位接触器控制端的搭铁
问答题陶瓷材料制成PTC陶瓷材料有哪几个条件?