已知集合A{x|y=x2-7x-18},集合B={x|y=ln(4-3x-x2)

题型:解答题

问题:

已知集合A{x|y=
x2-7x-18
},集合B={x|y=ln(4-3x-x2)},集合C={x|m+2<x<2m-3}.
(Ⅰ)设全集U=R,求∁UA∩B;
(Ⅱ)若A∩C=C,求实数m的取值范围.
考点:集合间交、并、补的运算(用Venn图表示)
题型:解答题

男,39岁,调配农药4h后感头痛、头晕、乏力、视物模糊、恶心、呕吐、多汗、瞳孔缩小并有肌肉颤动。血胆碱酯酶活力为60%()
男,42岁,误服农药水剂100ml,出现头痛、头晕、恶心、呕吐、上腹部疼痛,很快昏迷伴呼吸困难,发绀,肺部干、湿啰音,四肢肌肉震颤和抽搐,心律失常()

A.急性有机磷杀虫药中毒

B.急性氨基甲酸酯类杀虫药中毒

C.拟除虫菊酯类杀虫药中毒

D.有机氯杀虫药中毒

E.杀虫脒中毒

题型:解答题

简述《担保法》规定的禁止作为保证人的主体的种类。

题型:解答题

一侧进行性听力下降,耳鸣及角膜反射迟钝,应不考虑种疾病包括()。

A.meniere病

B.听神经瘤

C.化脓性中耳炎

D.突发性耳聋

E.耳硬化症

题型:解答题

某学校地理兴趣小组设计并做了如下实验,据图3回答问题。

图4中地理现象的成因与该实验原理相同的是:()

A.A

B.B

C.C

D.D

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The Economist recognises these talented people through its annual Innovation Awards, presented in six fields: bioscience, computing and communications, energy and environment, business-process innovation, consumer products and a flexible "no boundaries" category. The awards were presented at a ceremony in London on November 9th by John Micklethwait, The Economist’s editor-in-chief.
And the winners were:
Bioscience:
Marvin Caruthers, professor of chemistry and biochemistry at the University of Colorado at Boulder, for the development of automated DNA synthesis--the ability to "print out" arbitrary strands of genetic material.
(41) Computing and communications:
a creative individual who dreams up new ideas of computing and communi6ations and turn them into reality.
(42) Energy and environment:
a creative individual who dreams up new ideas of energy and environment and turn them into reality.
(43) No boundaries:
a creative individual who dream up new ideas of internet and turn them into reality.
(44) Business-process innovation:
a creative individual who dreams up new ideas of business-process and turn them into reality.
(45) Consumer products:
a creative individual who dreams up new ideas of consumer products and turn them into reality.
We extend our congratulations to the winners, and our thanks to the judges.
[A] Nicolas Hayek, chairman of Swatch, for revitalising the Swiss watch industry. During the 1980s Switzerland’s legendary watch industry fell into decline, with exports falling by half within a decade as a result of Japanese competition. Mr. Hayek’s response was to consolidate the industry to create the Swatch Group. It went on to beat the Japanese at their own game, creating the bestselling watch brand in history and becoming the largest watchmaker in the world, with a quarter of the market.
[B] Janus Friis and Niklas Zennstrom of Skype, for the development of internet file-sharing and telephony using peer-to-peer technology, which allows millions of computers to link up over the internet without central co-ordination. In 2000 Messrs Friis and Zennstrom launched KaZaA, which became the dominant means of sharing music and video files, despite attempts by the entertainment industry to shut it down. Skype, launched in 2003, lets users make free phone calls over the internet, forcing traditional telecoms operators to slash their prices.
[C] Sam Pitroda, chief executive of WorldTel, for pioneering India’s communications revolution. In 1987 Mr. Pitroda was asked by Rajiv Gandhi, the Indian prime minister, to help democratise access to telecommunications. His response was to deploy instantly recognizable yellow telephone kiosks in every town and village. This helped to release India’s telecoms industry from state control and opened it up to private firms, paving the way for a technology boom. He now promotes similar policies in other countries.
[D] Pierre Omidyar, founder and chairman of eBay, for the development of electronic marketplace technology and his promotion of access to markets as a tool for social change. Mr. Omidyar set up eBay in 1995 with the aim of creating a marketplace accessible to any internet user. The business was profitable by 1996. People all over the world buy and sell items in 45 000 categories; some even make a living trading on eBay.
[E] Hernando de Soto, founder and president of the Institute for Liberty and Democracy. Mr. de Soto argues that bureaucracy and the lack of formal property rights are major causes of poverty in developing countries. Red tape and the lack of legal title to property, preventing its use as collateral, make it hard for the poor to establish or expand businesses. While serving as economic adviser to the Peruvian government, Mr. de Soto initiated a property-titling scheme which helped 1.2m families. Similar reforms have been implemented in El Salvador, Haiti, Tanzania and Egypt. Mr. de Soto has also championed the use of league tables to shame governments into cutting red tape.
[F] Johannes Poulsen, former chief executive, Vestas Wind Systems, for the commercialisation of wind energy. In 1987 Mr. Poulsen took the helm at Vestas, then a small Danish firm with 60 employees. By the time he retired in 2002, Vestas had 5 000 employees and a quarter of the world market for wind turbines. Under Mr. Poulsen, Vestas greatly improved the efficiency of wind turbines, reducing costs and making wind power more competitive.

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