单选题Modern scientists divide the process of dying into two stages—clinical or temporary death and biological death. Clinical death occurs when the vital organs, such as the heart or lungs, have ceased to function, but have not suffered permanent damage. The organism can still be revived. Biological death occurs when changes in the organism lead to the disintegration of vital cells and tissues. Death is then irreversible and final. Scientists have been seeking a way to prolong the period of clinical death so that the organism can be revived before biological death occurs. The best method developed so far involves cooling of the organism, combined with narcotic sleep. By slowing down the body"s metabolism, cooling delays the processes leading to biological death. To illustrate how this works, scientists performed an experiment on a six-year-old female monkey called Keta. The scientists put Keta to sleep with a narcotic. Then they surrounded her body with ice-bags and began checking her body temperature. When it had dropped to 28 degrees the scientists began draining blood from its body. The monkey"s blood pressure decreased and an hour later both the heart and breathing stopped; clinical death set in. For twenty minutes Keta remained in this state. Her temperature dropped to 22 degrees. At this point the scientists pumped blood into its body in the direction of the heart and started artificial breathing. After two minutes the monkey"s heart became active once more. After fifteen minutes, spontaneous breathing began, and after four hours Keta opened her eyes and lifted her head. After six hours, when the scientists tried to give her a penicillin injection, Keta seized the syringe and ran with it around the room. Her behavior differed little from that of a healthy animal.

单选题______ the weather, the sports meeting will be held on time.

单选题以下说法中，反映当代世界各国课程改革中所存在着的一些共同的发展趋势的是( )A．重视课程的标准化建设B．重视课程内容的现代化、综合化C．重视基础学科和知识的结构化D．重视能力的培养

单选题以下作家中，属于美国国籍的是______。

单选题Advertisers tend to think big and perhaps this is why they"re always coming in for criticism. Their critics seem to resent them because they have a flair for self-promotion and because they have so much money to throw around. "It"s iniquitous," they say, "that this entirely unproductive industry (if we can call it that) should absorb millions of pounds each year. It only goes to show how much profit the big companies are making. Why don"t they stop advertising and reduce the price of their goods? After all, it"s the consumer who pays..." The poor old consumer! He"d have to pay a great deal more if advertising didn"t create mass markets for products. It is precisely because of the heavy advertising that consumer goods are so cheap. But we get the wrong idea if we think the only purpose of advertising is to sell goods. Another equally important function is to inform. A great deal of the knowledge we have about household goods derives largely from the advertisements we read. Advertisements introduce us to new products or remind us of the existence of ones we already know about. Supposing you wanted to buy a washing machine, it is more than likely you would obtain details regarding performance, price, etc., from an advertisement. Lots of people pretend that they never read advertisements, but this claim may be seriously doubted. It is hardly possible not to read advertisements these days. And what fun they often are, too! Just think what a railway station or a newspaper would be like without advertisements. Would you enjoy gazing at a blank wall or reading railway bye-laws while waiting for a train? Would you like to read only closely printed columns of news in your daily paper? A cheerful, witty advertisement makes such a difference to a drab wall or a newspaper full of the daily ration of calamities. We must not forget, either, that advertising makes a positive contribution to our pockets. Newspapers, commercial radio and television companies could not subsist without this source of revenue. The fact that we pay so little for our daily paper, or can enjoy so many broadcast programmes is due entirely to the money spent by advertisers. Just think what a newspaper would cost if we had to pay its full price! Another thing we mustn"t forget is the "small ads." which are in virtually every newspaper and magazine. What a tremendously useful service they perform for the community! Just about anything can be accomplished through these columns. For instance, you can find a job, buy or sell a house, announce a birth, marriage or death in what used to be called the "hatch, match and dispatch" column but by far the most fascinating section is the personal or "agony" column. No other item in a newspaper provides such entertaining reading or offers such a deep insight into human nature. It"s the best advertisement for advertising there is!

单选题教师运用谈话法的基本要求不包括( )。A．问题设计要准确B．提问要灵活C．谈话重引导D．结束有总结

单选题“本无其字，依声托事，令、长是也”(许慎《说文解字》)一语中所解释的造字法是（）。

单选题“教育即生活”“教育即生长”“教育即经验的不断改造”的提出者是______

单选题鲁迅描述近代中国“简直是将几个世纪缩在一时：自松油片以至电灯，自独轮车以至飞机，自镖枪以至机关枪……都摩肩挨背地存在。”材料描述的历史现象揭示的本质是______。

单选题皮格马利翁效应启示教师应该对学生______。 A．充满期望 B．启发引导 C．严格要求 D．因材施教

单选题让学生按照各自的水平和速度进行学习的教学方法属于( )。 A．愉快教学 B．个别化教学 C．情境教学 D．理想化教学

单选题某一测验在多次施测后所得的分数的稳定、一致的程度称为______． A.信度 B.效度 C.难度 D.区分度

单选题【2015．广西】课堂学习纪律划分为教师促成的纪律、集体促成的纪律、任务促成的纪律，其依据是( )。

单选题The most famous leader of black movements in the US was ______.

单选题在完成自由命题的作文时，一位中学生选择作文题目，确定写作提纲，并评价自己写出作文是否符合要求，根据斯滕伯格的三元智力理论，完成这项活动主要依赖的智力是______。

单选题关于智力与创造力的关系，表达正确的是______

单选题我国经济体制改革的中心环节是______。

单选题下列是“函数为奇函数”的充分不必要条件是______．A．B．C．D．φ=0

单选题国家对适龄儿童和少年，不分性别、民族、种族、家庭、财产状况、宗教信仰等，依法享受平等接受教育的权利指的是______。

单选题素质教育在本质上是一种______。 A.教育政策 B.教育价值取向 C.教育模式 D.教育方法