对于流体动力润滑轴承，当转速高、比压小时，可以选择浓度较高的润滑油，反之，当转速低、比压大时，应选粘度较低的润滑油。

[单选题]Your network contains an Active Directory domain. The domain contains five domain controllers.   A domain controller named DC1 has the DHCP role and the file server role installed.   You need to move the Active Directory database on DC1 to an alternate location. The solution must  minimize impact on the network during the database move.   What should you do first（）

[多选题]下列关于企业投资性房地产会计处理的表述中，正确的有（  ）。

[单选题]地面混凝土垫层的强度等级不应小于（）。

[单选题]图示结构用力矩分配法计算时，分配系数μ 的值为（）

[单选题]1949年3月30日，中央军委任命（）军委航空局局长。

[单选题]阅读理解：请根据短文内容，为每题确定l个最佳选项。 How We Form First Impression。 We all have first impression of someone we just met. But why? Why do we form an opinion about someone without really knowing anything about him or her - aside perhaps from a few remarks or readily observable traits? The answer is related to how your brain allows you to be aware of the world. Your brain is so sensitive in picking up facial traits. Even very minor difference in how a person’s eyes, ears, nose, or mouth are placed in relation to each other makes you see him or her as different. In fact, your brain continuously processes incoming sensory information - the sights and sounds of your world. These incoming signals are compared against a host of “memories” stored in the brain areas called the cortex(皮质) system to determine what these new signals “mean”. If you see someone you know and like at school, your brain says “familiar and safe”. If you see someone new, it says, “new and potentially threatening”. Then your brain starts to match features of this strangers with other “known” memories. The more unfamiliar the characteristics, the more your brain may say, “This is new, I don’t like this person” Or else, “I’m intrigued(好奇的)”. Or your brain may perceive a new face but familiar clothes, ethnicity, gestures - like your other friends; so your brain says: “I like this person”. But these preliminary impressions can be dead wrong. When we stereotype people, we use a less mature form of thinking (not unlike the immature thinking of a very young child) that makes simplistic and categorical impressions of others. Rather than learn about the depth and breadth of people - their history, interest, values, strengths, and true character - we categorize them as jocks(骗子), peeks(反常的人), or freaks(怪人). However, if we resist initial stereotypical impressions, we have a chance to be aware of what a person is truly like. If we spend time with a person, hear about his or her life, hopes, dreams, and become aware of our cortex, which allow us to be humane. Our thinking is not mature enough when we stereotype people because_______.

[判断题]电液调速器空载及负载运行两组参数整定值可以自动切换，一般用发电机断路器的辅助接点控制。

[多选题]用水提取苦参时，增加其浸出率的措施有（）

[多选题]一般可以选择治疗哪些具有危险因素的高眼压症病人（）

[多选题]当同事询问能否不参加你通知的会议时，你应（）。

[判断题]对于流体动力润滑轴承，当转速高、比压小时，可以选择浓度较高的润滑油，反之，当转速低、比压大时，应选粘度较低的润滑油。

[单选题]关于对润滑油要求的叙述中正确的是（） ①润滑油粘度高，油膜承载能力大但磨擦功耗也大 ②润滑油粘度低，油膜承载能力大但磨擦功耗也大 ③润滑油应具有较高的凝点与较低...

[填空题]润滑油高位油箱正常工作期间，始终有少量的油经三阀组中的（）进入高位油箱，以维持高位油箱内的油温，当润滑油总管的油压低于高位油箱的位差压力时，三阀组中的（）自动打...

[填空题]润滑油的（）是表示当温度降低到某一数值时，润滑油中开始析出石蜡（即润滑油变得浑浊）时的温度。

[填空题]汽油机润滑油的选择主要是选择润滑油的质量等级和粘度级别。根据（）选择相应的润滑油质量等级，再根据（）选择润滑油粘度级别。

[单选题]某装置循环氢压缩机润滑油系统润滑油经常被乳化，新更换的润滑油没有几天就会发生这种现象，润滑油乳化的原因可能是润滑油（）

[判断题]车用润滑油脂的品种有钙基润滑油脂、钠基润滑油脂、锂基润滑油脂和铝基润滑油脂等。

[判断题]车用润滑油脂的品种有钙基润滑油脂、钠基润滑油脂、锂基润滑油脂和铝基润滑油脂等。

[单选题]内燃扳手加注润滑油时，应移开齿轮盘上的螺丝，倒出旧的润滑油，加注0.5升（）润滑油。

[单选题]内燃扳手加注润滑油时，应移开齿轮盘上的螺丝，倒出旧的润滑油，加注0.5升（）润滑油。