允许用隔离开关拉合励磁电流不超过()的空载变压器、电抗器。A.5A B.4A C.3

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问题:

允许用隔离开关拉合励磁电流不超过()的空载变压器、电抗器。

A.5A

B.4A

C.3A

D.2A

考点:电网调度运行人员考试电网调度调控考试电网调度调控考试题库
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伸直型肱骨髁上骨折,常见的并发症是

A.神经血管的损伤

B.肱骨下段缺血坏死

C.坠积性肺炎

D.脂肪栓塞

E.骨折局部感染

题型:单项选择题

研究发现铜具有独特的杀菌功能,能较好地抑制病菌的生长。工业上铜冶炼大致可分为:

①富集:将硫化物矿石进行浮选;

②焙烧,主要反应为:2CuFeS2+4O2→Cu2S+3SO2+2FeO(炉渣);

③制粗铜,在1200℃主要的反应为:2Cu2S+3O2→2Cu2O+2SO2;2Cu2O+Cu2S→6Cu+SO2↑;

④电解精炼,在阴极得到精铜。

下列说法不正确的是

A.上述生产过程中的尾气可以通入氨水中,生产氮肥

B.电解精炼时,粗铜应与外电源的正极相连

C.反应2Cu2O+Cu2S→6Cu+SO2↑中的Cu2O是氧化剂

D.每生产6mol Cu,理论上需消耗11mol O2

题型:单项选择题

课时计划就是教案。

题型:单项选择题

常与熔点较高的蜡类制成稠度适宜的基质的是()

A.麻油

B.羊毛脂

C.液状石蜡

D.硅酮类

E.蜂蜡

题型:单项选择题

Washington: The Bush administration has ________for the first time that it may be willing to ________a multinational force in Iraq to operate under the ________of the United Nations as long as ________by an American. The idea was described by Richard L. Armitage, the deputy secretary of state, as just "________" in discussions at the United Nations. It was first ________publicly last week by Kofi Annan, the United Nations’’ secretary general.Mr. Armitage’’s remarks, made ________to regional reporters and released by ________today, represent ________in course for the administration, which has until now insisted that all ________matters in Iraq remain under total American control. Allowing the United Nations ________would be intended to win the support of the Security Council for ________authorizing the ________ occupation of the country.In his remarks, Mr. Armitage ________to discuss the plans________, saying, "I don’’t think it helps to ________publicly right now." But he described the arrangement under consideration as "a multinational force________" in which "the American would be the U.N. commander."On Monday, Defense Secretary Donald H. Rumsfeld was asked whether he could ________American troops fighting_______. His answer: "I think that’’s not going to happen." But he went on to rule out only "________" meaning by the United Nations, whose troops wear blue helmets over a peacekeeping force in Iraq.

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