有限个同频率正弦量相加的结果是一个()。 A.同频率的交流量 B.另一频率的交流量

题型:单项选择题

问题:

有限个同频率正弦量相加的结果是一个()。

A.同频率的交流量

B.另一频率的交流量

C.同频率的正弦量

D.另一频率的正弦量

考点:电力线路工电力线路中级工电力线路中级工题库
题型:单项选择题

阅读理解。

     Until recently, women in advertisements wore one of three things-an apron, an attractive dress or a frown.

Although that is now changing, many women still feel angry about offending advertisements. "This ad degrades

women." they protested (抗议). Why does this sort of advertising exist? How can advertisers and ad agencies

still produce, sometimes, after months of research, advertising that offends the consumer?

     The ASA, the body which deals with complaints about print media, is carrying out research into how women

feel about the way they are pictured in advertisements. Its conclusions are likely 10 be what the advertising

industry already knows: although women are often annoyed by the ads, few feel strongly enough to complain.

     Women are not the only victims of poor and boring stereotypes (老套)-in many TV commercials men are

seen either as useless, childish fools who are unable to perform the simplest household tasks, or as inconsiderate

fellows, always on the lookout for an escape to the pub. But it is women who seem to suffer more from the

industry's inability to put people into an authentic present-day situation. Yet according to Emma Bennett, director

of a London advertising agency, women are not aggressive or extremely angry about those stereotypes and

sexist (歧视妇女的) advertising. "They just find it annoying or tiresome."

     She says that it is not advertising's use of the housewife role that bothers women, but the way in which it is

handled. "The most important thing is the advertisement's tone of voice. Women hate being insincerely praised

or given desperately down-to-earth common-sense advice."

     In the end, the responsibility for good advertising must be shared between the advertiser, the advertising

agency and the consumer. Advertising does not set trends but it reflects them. It is up to the consumer to tell

advertisers where they fail, and the process of change will remain slow until people on the receiving end take

the business seriously and make their feelings known.

1. Despite recent changes in attitudes, some advertisements still fail to _____.

A. change women's opinions of themselves

B. show any understanding of consumers' feelings

C. persuade the public to buy certain products

D. meet the needs of the advertising industry

2. According to the writer, the commonest fault of present-day advertising is to _____.

A. condemn the role of tile housewife

B. ignore protests about advertisements

C. present a misleading image of women

D. picture the activities of men wrongly

3. Emma Bennett suggests that advertisement ought to _____.

A. give further emphasis to practical advice

B. change their style rather than their content

C. use male images instead of female ones

D. sing higher praise for women than before

4. We can learn from the passage that advertising industry should _____.

A. take its job more eagerly

B. do more pioneering work

C. take notice of the public opinion

D. concentrate on the products advertised

题型:单项选择题

斯塔犬里阿诺斯在《全球通史》中指出:“在西方的经济确实是一团糟的同时,苏联正在继续进行经济发展方面的独特经验。虽然……伴有严厉的压制和民众的穷困,但实质上是成功的。”这里的“独特经验”是指[ ]

A.战时 * * 主义政策

B.新经济政策

C.高度集中的管理体制

D.社会主义工业化

题型:单项选择题

第一类新生物制品的制造检定规程试行期为

A.1年
B.2年
C.3年
D.4年
E.5年

题型:单项选择题

某学校发生集体食物中毒,主要症状为呕吐,但在厨房用具及厨师手上没有检出肠道致病菌,但在一厨师手上查出了化脓性感染灶

该致病菌可能是

A.大肠埃希菌
B.空肠弯曲菌
C.鼠伤寒沙门菌
D.霍乱弧菌
E.金黄色葡萄球菌

题型:单项选择题

成人氢氟酸烧伤,4%右前臂Ⅲ度,宜采用()。

A.包扎疗法

B.先用包扎疗法,3~5天后削痂植皮

C.急诊行削痂植皮术

D.急诊行切痂植皮术

E.3~4天后切痂植皮

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