如图所示,L是自感系数较大的一个线圈,电源的电动势为6V,开关S已闭合,当S断开

题型:计算题

问题:

如图所示,L是自感系数较大的一个线圈,电源的电动势为6V,开关S已闭合,当S断开时,在L中出现的自感电动势E'=100V。求此时a、b两点间的电势差。

考点:自感现象
题型:计算题

小儿体格锻练中的注意事项是

A.锻练要从小开始

B.锻练要循序渐进

C.要注意小儿个体的特点

D.要有足够的营养

E.要与合理的生活制度配合

题型:计算题

国务院把2005年确定为改革攻坚年。一系列关键领域的改革加速推进,就业、社会保障、教育、医疗等事关百姓切身利益的改革摆上突出位置。改革的实质是 [ ]

A.建立社会主义经济体制

B.建立社会主义市场经济体制

C.社会主义制度的自我完善

D.进行政治体制、社会保障制度的改革

题型:计算题

Busy senior managers need no longer waste time by showering themselves—an Australian company has invented a suit that can be worn while they wash.

The suit has been specially designed SO that it can be cleaned under the showerhead. There is no need for soaking(浸泡),dry cleaning—or even soap.

The Javanese market has taken a liking to the “shower suit",described as “revolutionary” by its owner Australian Wool Innovation(AWI),which is the research and marketing body that represents Australian woolgrowers. Orders have been placed for 170,000 of the woolen suits.

The suit could be W01Tt in the shower,although it was probably better to hang it on a clothes hanger and carry it instead,AWI corporate affairs spokesman Stephen Feighan said. “The idea is that you hang it up and then…you give it a spray (喷雾) ,and it's dry the next morning,”Mr Feighan said.

A Japanese researcher working for AWI invented the suit by combining three technologies. The secret is the best lining(内衬),which allows the suit to dry quickly. The shower suit attract busy corporate people,particularly those who often traveled or stayed up late,Mr Feighan said. The airline industry was alone interested.

Mr Feighan confessed he had not WOD3 one of the suits yet,or tried to wash it in the shower,because they cut to fit Japanese figures.

AWI believes that the shower suit will spread from the Japanese market through Europe and India. Mr Feighan hoped the suit,made from local wool,would be available in Australia in 12 to 18 months’ time.

71. What is the writing purpose of the article?

A. To introduce a newly-designed shower suit.

B. To help the white collars arrange their life more sensibly.

C. To provide suggestions on saving time in bath.

D. To praise AWI for its important achievement.

72. Which is true about the suit according to the passage 7?

A. It can spare the owner's trouble of soaking,dry cleaning and applying soap.

B. It is of the quality of fast dry for its best cloth.

C. It is not suitable for hanging.

D. It has attracted more orders than any other suit.

73. The suit draws the attention from all the following groups EXCEPT      .

A. corporate people who are always on the go

B. people on occasional business trips

C. the airline industry               D. people burning the midnight oil

74. Which of the following has much to do with Mr Feighan?

A. The invention of the suit.         

B. The try-on of the suit.

C. The combination of the three technologies on the suit.

D. The popularization of the suit and best wishes for it.

75. It can be inferred from the passage that           . .

A. Australians prefer foreign markets to the domestic one

B. wool is the most favorite material for clothing

C. Westerners have different body sizes and figures from Easterners

D. Australia’s economy will not recover within a year

题型:计算题

生产经营单位的从业人员应当依法履行安全生产方面的义务。

题型:计算题

艾青《乞丐》从哪些方面塑造乞丐的形象?()

A、眼睛

B、衣着

C、声音

D、手

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