下列有关土地制度的叙述，正确的是（　） A．井田制规定土地属于全体国民所有 B．

阅读下列材料，回答题后问题：

材料一：“大漠穷秋塞草哀，孤城落日斗兵稀。”——高适

材料二：“楚塞三湘接，荆门就派通。江流天地外，山色有无中。”——王维

材料三：“朝辞白帝彩云间，千里江陵一日还。两岸猿声啼不住，轻舟已过万重山。”——李白《早发白帝城》

材料四：“朱门酒肉臭，路有冻死骨。”——杜甫

（1）材料一、二的作者分别属于唐诗中的哪类诗人？你知道这类诗人还有哪些代表人物？

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（2）根据材料三、四并结合所学知识，说明李白、杜甫的诗歌各有什么特点？为什么会形成这种特点？

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An 18th-century statesman Edmund Burke once said, “All that is needed for the success of a misguided cause is that good people do nothing.” One such cause now seeks to end biomedical research because of the theory that animals have rights to decide whether to be used in research. Scientists need to respond forcefully to animal rights advocates, whose arguments are puzzling the public and threatening advances in health knowledge and care. Leaders of the animal rights movement attack biomedical research because it depends on public funding, and few people understand the process of health care research. Hearing false reports of cruelty to animals in research settings, many are puzzled that anyone would harm an animal on purpose.

For example, a grandmotherly woman setting up an animal rights booth at a recent street fair was giving out sheets that encouraged readers not to use anything that comes from or is tested in animals－no meat, no fur, no medicines. Asked what will happen when epidemics(传染病) return, she said. “Don’t worry, scientists will find some way of using computers.” Such well-meaning people just don’t understand.

Scientists must communicate their message to the public in an understandable way－in human terms, not in the language of biology. We need to make clear the connection between animal research and a grandmother’s organ replacement, a father’s bypass operation, a baby’s vaccinations(接种疫苗), and even a pet’s shots. To those who know nothing about the animal research that was needed to produce these treatments, as well as new treatments and vaccines, animal research seems wasteful at best and cruel at worst.

Much can be done. Scientists could give middle school lessons and present their own research. They should be quick to respond to letters to the editor, in case animal rights misinformation goes unchallenged and gains a false appearance of truth. Research institutions could be opened to tours, to show that laboratory animals receive humane care. Finally, because there are a lot of patients, the health research community should actively recruit(招募) not only well-known personalities such as Stephen Cooper, who has made courageous statements about the value of animal research, but all who receive medical treatment. If good people do nothing, there is a real possibility that uninformed citizens will wipe out the precious of medical progress.

1. The purpose of the author beginning his article with Edmund Burke’s words is to _____.

A．call on scientists to take some actions

B．argue against the cause of animal rights

C．warn of the failure of biomedical research

D．show the success of the animal rights movement

2. In the second paragraph, the author took a grandmotherly woman as an example to show ____.

A. the way to prevent epidemics           B. the innocence of the woman

C. how strong the opposition was     D. how important the animal rights were

3. In the eyes of the author, misguided people are likely to think that using an animal in research

is ______.

A．cruel but necessary           B．just but unnecessary

C．meaningful and wasteful    D．inhuman and unacceptable

4. What can be inferred from the passage?

A．People care very little about returns of epidemics.

B．The public lacks knowledge of biomedical science.

C．Stephen Cooper is very seriously concerned about animal treatment.

D．Scientists should make efforts to develop new cures by means of hi-tech.

5. According to the passage, the author’s attitude toward biomedical research is ________.

A. Disinterested                B. Indifferent                C. Objective                 D. Supportive

正确建立装配尺寸链必须做到？

20世纪70年代，中东产油国大幅度提高石油价格的主要目的是[ ]

A．反对美国等资本主义国家支持以色列

B．反对苏联等社会主义国家支持以色列

C．获得更高额的利润

D．石油的产量大幅度下降

新安装的电压、电流互感器在投入运行前，要仔细检查顶部的（）情况，特别是有进水可能的螺孔及其他连接处，均应保持（）良好，严防进水受潮。