接在弱交流系统(低ESCR)的直流系统运行中主要存在如下问题()。A.动态过电压问题

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问题:

接在弱交流系统(低ESCR)的直流系统运行中主要存在如下问题()。

A.动态过电压问题

B.电压稳定问题

C.换相失败问题

D.功角稳定问题

考点:电力系统调度运行考试电力系统调度运行考试题库
题型:多项选择题

阅读填词, 阅读下列短文并根据首字母提示完成单词。

      Traveling to all corners of the world gets easier and easier, but how well do we know and (1) u_____

each other? Here is a simple test. I imagine you will hold a (2) m_____ at four o'clock, what time should you

(3) e_____ your foreign business friends to come? If they are German, they will (4) a______ on time. If they

are American, they'll probably be fifteen minutes early. If they are British, they'll be fifteen minutes late.

      The British seemed to think since the English (5) l______ was widely used in the world, what they did

was certain to be widely understood. Very soon they (6) f______ they were completely wrong. For (7)

e______, the British are happy to have a business lunch and discuss business matters with a drink during

the meal; the Japanese (8) p______ not to work while eating. Lunch is a time for them to relax and get to

know (9) e______ other, and they don't drink at lunch. The Germans like to talk business (10) b______ dinner;

the French like to eat first and talk afterwards. They have to be well fed and watered before they discuss

anything.

题型:多项选择题

把下面的词语用线连起来。     

碧绿的    天鹅     

长长的    嘴巴     

美丽的    衣裳     

宽宽的    脖子

题型:多项选择题

明明全家要去海南过春节,他通过网络查找了合适的航班,把每个旅游网点浏览了一遍,还在聊天室找到了一位海南的朋友,了解食宿方面的情况,为海南之旅作好了准备。这说明了网络[     ]

A、给我们的生活带来了便利

B、可以解决任何异地出游的问题

C、是结交朋友最好的场所

D、能给我们提供真实可靠的信息

题型:多项选择题

电镀(在金属物品上镀一层防锈的金属)是利用电流的______效应;电磁起重机是利用电流的______效应工作的.

题型:多项选择题

女孩在()、男孩在()以前出现性发育征象,称为性早熟。性征与真实性别一致者为(),不一致者为();按下丘脑一垂体一性腺轴功能是否提前发动分为()和()。

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