上下行并联的回流线,变压器N线,当一侧带电运行时,视为()。

题型:填空题

问题:

上下行并联的回流线,变压器N线,当一侧带电运行时,视为()。

考点:电力调度员电力调度员综合练习电力调度员综合练习题库
题型:填空题

关于出血症状正确的是()。

A.柏油便多伴有呕血

B.呕血常伴有黑便

C.咯血常伴有黑便

D.鲜血便多伴有呕血

E.鲜血便伴有呕血

题型:填空题

电渗析法是一种利用离子交换膜进行海水淡化的方法,其原理如图所示。已知海水中含Na、Cl、Ca2、Mg2、SO 等离子,电极为惰性电极。下列叙述中正确的是

A.A膜是阳离子交换膜

B.通电后,海水中阴离子往b电极处运动

C.通电后,b电极上产生无色气体,溶液中出现白色沉淀

D.通电后,a电极的电极反应式为:4OH-4e= O2↑+2H2O

题型:填空题

患者男性,邻面龋坏,检查:见邻面接触点破坏,拟行邻嵌体修复

关于嵌体的牙体预备,表述错误的是()

A.去除龋坏组织

B.提供良好的固位形和抗力形

C.洞缘预备短斜面

D.洞壁无倒凹

E.洞深不能少于6mm

题型:填空题

Kofi Annan says helping survivors of last week’ s earthquake and (1) in the Indian Ocean is (2) . The United Nations secretary- general says countries that have offered aid must (3) and provide it. The offers add up to around (4) dollars. United Nations officials say (5) of that is needed during the next six months. The concern about offers of international aid is (6) . For example, the earthquake in Barn, Iran, in (7) of 2003 killed more than (8) people. Countries and groups offered hundreds of millions of dollars (9) .The United Nations says it has (10) only about (11) dollars in aid received so far. Governments and organizations that offered help (12) that, however. On (13) Mr. Annan met with world leaders in Jakarta, Indonesia to discuss aid for (14) . The leaders discussed and (15) the idea of (16) owed by affected nations. But the leaders did not say they would do so. Some said that (17) to survivors would be more helpful. Representatives of (18) countries and international organizations attended the meeting in Jakarta. Officials say they will cooperate to develop (19) for the Indian Ocean and the (20) .

题型:填空题

下列关于新中国第一则电视广告说法不正确的是()。

A.播出时间是1979年1月28日

B.广告内容是“参桂养容酒”

C.由上海电视台播出

D.是由真人拍摄的广告

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