由于短路点存在过渡电阻,必然直接影响阻抗继电器的测量阻抗,一般在单侧电源网络中,过渡

题型:单项选择题

问题:

由于短路点存在过渡电阻,必然直接影响阻抗继电器的测量阻抗,一般在单侧电源网络中,过渡电阻会使测量阻抗()。

A、增大

B、减小

考点:继电保护工考试继电保护工考试题库
题型:单项选择题

下列属于文化现象的是( )

①2009年10月,十一届全国人大表决通过,免去周济的教育部部长职务,任命袁贵仁为教育部部长

②某省发现的大片原始森林 ③晨练,下棋,唱歌,扭秧歌等社区活动

④某校为迎接高考的 到来,在全校师生中开展“共铸诚信”征文活动

A.①②

B.②③

C.③④

D.②④

题型:单项选择题

根据对话情景和内容,从对话后所给的选项中选出能填入每一空白处的最佳选项,并在答题卡上将该选项涂黑。选项中有两个为多余选项。

Wang Gang:Hello, Zhang Lin! _______小题1:______

Zhang Lin:Well, on Monday afternoon I usually go to the reading room or the library, where I borrow some interesting books and magazines.

Wang Gang:What other activities do you take part in?

Zhang Lin:Every Friday afternoon we have an English party. _______小题2:______ Do you like films, Wang Gang?

Wang Gang:Sure. _______小题3:______

Zhang Lin:Yes, of course. I think City Lights will be on.

Wang Gang:I like the film but I have already seen it twice. _______小题4:______

Zhang Lin:Oh, there are ball games and matches nearly every week. You can also join the different groups.

Wang Gang:That’s interesting. _______小题5:______

Zhang Lin:Me, too. Let’s go and choose our preference.

A.Sometimes we watch English films.

B.What do you usually do after class?

C.Nice to meet you here.

D.I also love foreign films.E. What about sports and games?

F. I really should join one.

G. Will there be one this week?

题型:单项选择题

结核性脑膜炎()

A.糖正常,氯化物升高,蛋白明显下降,细胞数升高,以中性粒细胞为主

B.糖明显下降,氯化物正常,蛋白明显升高,细胞数升高,以中性粒细胞为主

C.糖明显下降,氯化物下降,蛋白明显升高,细胞数升高,以淋巴增高为主

D.糖正常,氯化物正常,蛋白升高,细胞数升高,以淋巴为主

E.糖明显升高,氯化物正常,蛋白正常,细胞数正常

题型:单项选择题

不得开架自选销售的药品是()

A.乙类非处方药

B.甲类非处方药

C.处方药、非处方药

D.非处方药

E.处方药

题型:单项选择题

不具有良好的导电性和导热性能的材料是 [ ]

A.铜    

B.铁    

C.铝    

D.聚乙烯塑料

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