【单选题】Which of the following is wrong about the machine rating?
A.
. CMR machines can accept a considerable momentary overload and perhaps even a moderate over-load for a longer duration.
B.
Temperature has effect on the performance of all electrical equipment but not on the useful life of the insulation.
C.
The ambient air temperature and the heating effect of current in the windings result in the total temperature of an operating machine.
D.
Adequate ventilation of electrical equipment is therefore essential.
【单选题】体外循环手术中,由于体温与机体代谢、肾、脑、肝等部位温度与其组织所受损害直接相关,常用的体温监测部位不包括下列那一项( )。
【单选题】提供给大家一张黑白效果图一张现场实景照片,临摹完成平面图方案
【简答题】Which is the most common machine element?
【单选题】男, 28 岁,行 46 牙位常规种植手术,术后应做的处理中不包括
B.
术后需要拍摄曲面体层 X 线片或 CBCT 片
D.
术后当天,如果患者感觉局部疼痛,可以口服止痛剂