题目内容 (请给出正确答案)
提问人:网友w*****2 发布时间:2022年3月21日 21:20
[填空题]

为防止在有效接地系统中出现孤立不接地系统并产生较高工频过电压的异常运行工况,110~220kV不接地变压器的中性点过电压保护应采用()保护方式。

参考答案
十点题库官方参考答案 (由十点题库聘请的专业题库老师提供的解答)
更多“为防止在有效接地系统中出现孤立不接地系统并产生较高工频过电压”相关的问题

死亡的概念是指

A . 有机体解体的过程B . 各组织和细胞全部坏死C . 机体作为一个整体的功能永久性停止D . 心跳、呼吸停止,反射消失E . 各器官、组织和细胞代谢全部停止
点击查看答案
刀具的切削角越小,其加工阻力越小,但切削角太小将使后角和楔角随之减小。
A . 正确
B . 错误
点击查看答案
106.下列哪项关于胸腺和淋巴结的陈述是不正确的
A.胚胎6~7周时,胸腺开始生成淋巴细胞
B.胚胎11周时,淋巴结开始生成淋巴细胞
C.胸腺有短暂的生成红细胞和粒细胞的作用
D.源于卵黄囊的原始干细胞可直接分化成T淋巴细胞
E.在胸腺内淋巴干细胞可分化成前T细胞和T细胞
点击查看答案
关于共同控制和重大影响,下列说法中正确的有()。
A . 重大影响,是指对一个企业的财务和经营政策有参与决策的权力,但并不能够控制或者与其他方一起共同控制这些政策的制定
B . 重大影响,是指有权决定一个企业的财务和经营政策,并能据以从该企业的经营活动中获取利益
C . 在确定能否对被投资单位施加重大影响时,应当考虑投资企业和其他方持有的被投资单位当期可转换公司债券、当期可执行认股权证等潜在表决权因素
D . 投资企业与其他方对被投资单位实施共同控制的,被投资单位为其合营企业
点击查看答案
不变资金,是指在一定的经营规模条件下,不随业务量增减而变动的资金。比如说,为维持企业经营所需的最低数额资金、原材料的保险储备、应收账款等。
点击查看答案
敲帮问顶操作过程中,顶帮回击声()时,可以判断顶板和煤帮稳定性良好。
A、清脆声、整体声
B、翁翁声、仆仆声
C、虚声
点击查看答案
What difference does it make if we read texts displayed on a computer screen instead of on paper printed with ink The computer certainly does not secure deeper comprehension, greater subtlety of mind, or a wider range of imaginative reference. The mediation of a computer, however, put new powers at the disposal of intelligence. On the one hand, the computer itself can do simple reading — as I have noted, it can "read’an immense body of literature in search of designated words. As anyone knows who has ever spent days in libraries in search of errant information, simply identifying relevant sources absorbs inordinate amounts of time in research. The objection may be raised that a search of texts by computer may block the discoveries that occur while browsing in the stacks of great libraries. No member of the academy need fear that the use of a computer will keep him from the stacks, but browsing is , if anything, easier if texts can be called up on a screen in the serenity of one’s chosen surroundings. The great deficiency of libraries, as we know them, is that while titles are catalogued, the libraries have no master indexes of the contents of books. Individual volumes, it is true, have indexes, often of inferior quality, but even the best indexes must be examined one at a time. The great advantage of the electronic library is that a computer could search and analyze its contents without proceeding volume by volume. As work in artificial intelligence develops, computer systems may also become adept at more complex tasks, such as summarizing texts, which has been finished experimentally.
What difference does it make if we read texts displayed on a computer screen instead of on paper printed with ink The computer certainly does not secure deeper comprehension, greater subtlety of mind, or a wider range of imaginative reference. The mediation of a computer, however, put new powers at the disposal of intelligence. On the one hand, the computer itself can do simple reading — as I have noted, it can "read’an immense body of literature in search of designated words. As anyone knows who has ever spent days in libraries in search of errant information, simply identifying relevant sources absorbs inordinate amounts of time in research. The objection may be raised that a search of texts by computer may block the discoveries that occur while browsing in the stacks of great libraries. No member of the academy need fear that the use of a computer will keep him from the stacks, but browsing is , if anything, easier if texts can be called up on a screen in the serenity of one’s chosen surroundings. The great deficiency of libraries, as we know them, is that while titles are catalogued, the libraries have no master indexes of the contents of books. Individual volumes, it is true, have indexes, often of inferior quality, but even the best indexes must be examined one at a time. The great advantage of the electronic library is that a computer could search and analyze its contents without proceeding volume by volume. As work in artificial intelligence develops, computer systems may also become adept at more complex tasks, such as summarizing texts, which has been finished experimentally.
点击查看答案
基于产业功能分类,分析区域产业结构的模式。
点击查看答案
照片 这个人 上 的 是 女朋友 你 吗
点击查看答案
“天人感应”是孟子把先儒中天命的思想进一步神学化后提出的命题。
点击查看答案
唐玄宗在被迫的情况下勒死了杨贵妃。()
点击查看答案
王某的金鹿信用卡金卡在到期还款日偿还了最低还款额,从()日开始计算透支利息。
A.消费日 B.银行记帐日 C.到期还款日 D.账单日
点击查看答案


文艺复兴运动的实质是


A . 古希腊、罗马古典文化的复兴B . 资产阶级思想文化运动C . 封建阶级思想文化运动D . 无产阶级思想文化运动
点击查看答案
生长于颅内的良性肿瘤不会引起患者死亡。
A.对 B.错
点击查看答案
阀式避雷器的接地引下线与被保护设备外壳应可靠与接地网连接,其接地电阻不大于()。
A.1欧姆
B.2欧姆
C.3欧姆
D.4欧姆
点击查看答案
客服
TOP