问题 选择题

如图所示,R1和R2的规格为“4W,100Ω”,R3的规格为 “1W,100Ω”,当A、B端加电压通电时,这部分电路允许消耗的最大功率为:(       )

A.    B.1.5W    C.3W    D.9W

答案

答案:B

题目分析:R1和R2、R3的额定电流分别为0.2A、0.2A、0.1A由于R1和R2为串联关系所以正常发光时,并联段两端电压为40V,R3的额定电压为IR=10V,由此可知应使R3正常发光,两端电压为10V,R3的功率为1W,R1和R2的总功率为,所以电路总功率为1.5W,B对;

点评:本题难度中等,主要是明确电路中通过功率最大时,要保证每一个用电器都能正常工作,根据串联电流相等,并联电压相等和电功率公式进行判断

单项选择题

在大学生文化和生活价值观上,问卷通过多选题型考察大学生的文化生活趋向,大学生喜欢的十类文化排序分别是:传统经典文化、现代文化、古代文化、中国民间民族文化、通俗流行文化、异国文化、全球共同文化、宗教文化、前卫(超前)文化和后现代文化。大学生作为一个高知群体,在文化价值取向上展现出传统与现代交织的态势,大学生既热衷于现代文化,也保持对传统经典文化最浓厚的兴趣,只有小部分的大学生自认比较喜欢前卫文化和后现代文化。
在考察法律意识方面,问卷主要通过考察公民解决纠纷的途径来反映公民的法律意识。问卷设定了三种纠纷解决途径,即法律途径(“遵循法律和政策规定解决”)、行政途径(“找单位和领导帮助解决”)和武力途径(“通过恐吓、武力或其他施压方式解决”)三种,大学生在纠纷解决方面的选择情况分别为67.6%、28.9%和3.5%。应该说,只有极少部分大学生采取武力途径解决纠纷。在法律常识方面,大学生对法律性质的正确认识高达91.2%,在对我国已经颁布的部门法的了解上,选择《宪法》、《合同法》、《民事诉讼法》、《继承法》、《婚姻法》的分别为:96.7%、94.7%、93.7%、89.8%和95.1%,几乎都在90%以上。在调查中,我们还发现,大学生也以自己的实际行动来践行和维护法律。
在知识产权方面,93%的被调查者知道“世界知识产权日”,76%的被调查者明确“我国国家知识产权战略现在是从‘制定’转入‘实施’”,48%的被调查者关注过北京市高级人民法院2007年受理的《十大知识产权典型案例》。
大学生在科学意识方面,大学生自认在日常工作和学习中,选择“按他人意志办事”的仪占6.3%,选择“据自己兴趣办事”和“按客观规律办事”的占45.6%和48.1%。而对“科学发展观”,表示“明确知道”的占35.7%,表示“知道一些,不太明确”的占58.6%,而表示“不知道”的占5.6%。
在科学行为方面,大学生发现、思考和解决问题的能力作为考察的重点。大学生自认“很少遇到问题”的仅占22.7%,而认为“经常遇到问题”、“善于发现问题的原因”、“善于提出解决问题的办法”、“善于解决问题”四项的选择比例分别为57.1%、43.4%、39.5%和37.2%。

根据所给文字资料得出结论( )。

A.解决纠纷大学生用法律途径多于行政途径,用行政途径多于武力
B.在法律意识和法律常识方面,大学生是一个强势群体
C.大学生能够以自己的实际行动来践行和维护法律
D.大学生法律意识强,法律知识丰富,并且是遵守和维护法律的先锋

单项选择题

This was one of my experiences (1) . When I was in my 30s, I was working for a large international company which had its head office in London. I was working in the (2) department.

The company had a training centre which was just outside London. Different courses were held there throughout (3) and I (4) go on one training course a year. These usually started (5) a Sunday evening and lasted six days.

Once I was (6) a week’s training course with about forty (7) sales people. I was in the bar on the Friday evening and suddenly a woman who was (8) behind the bar asked mea curious question. "I hope you don’t (9) my asking," she said, "but I’ve been (10) about it all week. Have you got a sister (11) Mary" The woman’s name was June. And she used to do various jobs at the training centre. She worked in the office, she organized all the food and drink for the centre and she worked in the bar at lunchtime and in the evening.

My answer (12) June’s question was "Yes", and June said, "I thought (13) . I met her last September when she was organizing a course here. " At that time, my sister was working for (14) company but in a different part of the country. That was (15) she came to be at the training centre.

(16) surprised me was how June guessed we were brother and sister. Three things made it even more (17) . First, she had met my sister six months before she met me. Second, they have about sixty new people every week at the training centre. So about one thousand five hundred people had (18) the centre in those six months. And (19) , my sister is married, so she doesn’t have the same family name as me.

We’re not (20) , but I guess we must look quite like each other.

12().

A.of

B.about

C.to

D.for