要使A、B两个电磁铁互相吸引,电磁铁A如何绕线。

题型:操作题

问题:

要使AB两个电磁铁互相吸引,电磁铁A如何绕线。

考点:安培定则(右手螺旋定则)
题型:操作题

在人力资源相关的概念中,()代表的内涵范围最大。

A、人口资源

B、人力资源

C、人才资源

D、人力资本

题型:操作题

下面文字排序正确的一项是(  ) (3分)

①本人比较认同这样的国学定义:国学分为狭义上的国学和广义上的国学,狭义上的国学就是指经史子集,而广义上的国学则包括民国以前中国所有的学术与文化之总和。

②对国学下一个大家都认同的定义,可能会像对文化下一个大家都认同的定义一样,看来是非常困难的,甚至是不可能的。

③但是,如果对研究讨论的对象没有一个共同的认知标准,对对象的讨论和认识往往就会公说公有理,婆说婆有理,研究和讨论往往就深入不下去。

④尤其在当今价值多元化的时代更是如此,就是当年的国学大师们,如章太炎,梁启超等人,对国学的理解,也有很大的分歧。

⑤因为不同学术背景、不同知识结构、不同文化程度的人,很难在同一个问题上取得共识。

A.①⑤②④③ 

B.⑤②④③①  

C.①②⑤④③ 

D.②⑤④③①

题型:操作题

根据下面的统计表回答下面问题。

1995年我国主要经济区生产力布局
地区名称面积(万平方公里)人口数量(亿)地区国民生产总值(GNP)
占各区总和的比重(%)
长江三角洲地区331.6820
环渤海地区1122.4022
中部地区87.13.0814
珠江三角洲地区29.90.9813
西南地区1422.4311
东北地区1241.1315
西部地区3080.825

长江三角洲地区人均国民生产总值约是西部地区的( )。

A.2倍

B.3倍

C.4倍

D.5倍

题型:操作题

直流电机相邻两换向片间的电压降,各值不得超过所有片间电压降平均值的()。

A、15%

B、20%

C、25%

D、30%

题型:操作题

Lobbying groups often try to disguise a financial self-interest by clumsily dressing up their arguments in the guise of concern for the public. You see this tendency in the pharmaceutical industry (21) in energy and lumber companies who like to tout their (22) of the environment. But (23) , two new books argue, are these tactics more (24) a cause for concern than in agribusiness.
Marion Nestle’s "Food Safety: Bacteria, Biotechnology, and Bio-terrorism’ looks at the way the American meat and biotechnology industries have (25) successfully on Capitol Hill (26) stricter federal regulation, which the author argues has undermined the safety of the food supply.
(27) , Maxime Schwartz’s "How the Cows Turned Mad" (28) the origins of mad-cow disease over more than two centuries, and reveals the fallout from the British government’s blind (29) that the disease could not be (30) to humans.
In 1999, Ms Nestle writes in her earlier book, Rosemary Mueklow, the executive director of the National Meat Association, lobbied against President Clinton’s (31) to establish a more thorough testing regime for E. coli 0157: H7, a potentially (32) pathogen.
Ms Muck low’s organization—which represents meatpackers and processors who (33) to discard or reprocess meat found to be infected under the new testing regime—argued on Capitol Hill that (34) microbial testing in meat could actually lead to a greater public health risk (35) confident consumers might relax their own safe-handling procedures at home.

A. transformedB. transmittedC. transportedD. infected

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