对大电容的直流试验设备和试品,以及直流试验电压超过100kV的设备和试品接地放电时,

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问题:

对大电容的直流试验设备和试品,以及直流试验电压超过100kV的设备和试品接地放电时,应先用()放电,然后再直接接地或短路放电。

A.带电阻的接地棒

B.带地线的接地棒

C.临时代用的放电电阻

D.临时代用的放电线圈

E.绝缘导线

考点:国家电网建设安规考试《国家电网公司电力安全工作规程(电网建设部分)》《国家电网公司电力安全工作规程(电网建设部分)》题库
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测量的起始点由零变为某一数值时,称为()

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患者女,41岁。头痛半年,加重10d。头部MRI显示如下图。

关于该病的MRI描述正确的是()

A.右侧小脑半球圆形长T信号影,病变周边可见环形低信号

B.病变周边环形低信号对病变的诊断价值不大

C.病变邻近右侧小脑半球可见一条形高信号,其对病变的诊断价值不大

D.病变邻近右侧小脑半球可见一条形高信号,其对病变的诊断价值较大

E.第四脑室受压变窄对于病变的诊断价值较大

F.病变的内部信号不均匀对病变的诊断价值较大

题型:多项选择题

引起慢性肺心病失代偿最常见的诱因是()

A.过度劳累

B.营养不良

C.空气污染

D.哮喘发作

E.急性呼吸道感染

题型:多项选择题

What’s your earliest childhood memory Can you remember learning to walk Or talk The first time you heard thunder or watched a television program Adults seldom (1) events much earlier than the year or so before entering school, (2) children younger than three or four (3) retain any specific, personal experiences.

A variety of explanations have been (4) by psychologists for this "childhood amnesia". One argues that the hippo-campus; the region of the brain which is (5) for forming memories, does not mature until about the age of two. But the most popular theory (6) that, since adults don’t think like children, they cannot (7) childhood memories. Adults think in words, and their life memories are like stories or (8) one event follows (9) as in a novel or film. But when they search through their mental (10) for early childhood memories to add to this verbal life story, they don’t find any that fit the (11) . It’s like trying to find a Chinese word in an English dictionary.

Now psychologist Annette Simms of the New York State University offers a new (12) for childhood amnesia. She argues that there simply aren’t any early childhood memories to (13) . According to Dr. Simms, children need to learn to use someone else’s spoken description of their personal (14) in order to turn their own short-term, quickly forgotten (15) of them into long-term memories. In other (16) , children have to talk about their experiences and hear others talk about (17) --Mother talking about the afternoon (18) looking for seashells at the beach or Dad asking them about their day at Ocean Park. Without this (19) reinforcement, says Dr. Simms, children cannot form (20) memories of their personal experiences.

Notes: childhood amnesia 儿童失忆症。

6()

A.declines

B.assesses

C.estimates

D.maintains

题型:多项选择题

计算机的外围设备是指( )。

A.输入/输出设备

B.外存设备

C.远程通信设备

D.除了CPU和内存以外的其他设备

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