多级油的优越性是它的粘度随温度变化小、适用温度范围宽，故尽量使用多级油。
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按有关规定和要求保护接地及保护接零是防止电气设备绝缘损坏时外壳带电的有效措施。
A. 正确
B. 错误
You network contains a server named Server1. You have a computer named Computer1 that runs Windows XP Professional. Employees log on to Computer1 by using local user accounts. You need to configure the user profiles on Computer1 to be stored on Server1. What should you do?（）
A. On Computer1, map a drive to an administrative share on Server1. Configure each user's profile path to point to the mapped drive.
B. Create a shared folder on Server1. Assign Full Control permissions to all users. On Computer1, configure each user's profile path to a folder in the shared folder.
Create a shared folder on Server1. Assign Full Control permissions to all users. On Computer1, configure each user's home folder path to a folder in the shared folder.
D. On Computer1, map a drive from each client computer to an administrative share on Server1. Configure each user's home folder path to point to the mapped drive.&e
六十一岁，女性，既往体健，记忆力进行性下降2年，加重伴大小便失禁3个月，查体神志清楚，言语缓慢，反应迟钝，记忆力减退，计算力差7+8=？，判断力差，颅神经（-），四肢肌力肌张力正常，四肢病理征阴性。头颅CT为轻度脑萎缩。提问：关于Alzheimer病下述描述不正确的是（）
A. 是波动性认知功能障碍
B. 短暂意识丧失
C. 有锥体外系运动障碍
D. 反复跌倒
E. 反复发作的视幻觉
F. 对神经安定剂敏感
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