W: Did you watch the movie on TV last night
M: No. I’m thinking of getting rid of our TV set.
W: Why
M: That’s not the point. The problem is that all our free time is taken up by the TV. We don’t have any proper conversation any more. The kids come back home just to have time for TV programs.
W: Yes. But don’t you think some of the programs are interesting
M: Occasionally yes, but most of the time they’re rubbish. They’re either silly comedies or the sort of films filled with crime and violence.
W: But television is not to blame for that.
M: I’m sure it is. The TV has killed children’s creativity. It’s so easy to sit there watching others working.
W: I don’t quite agree with yon. Too much television is bad. But I think it is also teaching children many things. For example, what is going on in the world and how people live in other countries.
M: But t
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Panic A panic is a form of collective in which a group of people, face with an immediate threat, react in an uncoordinated and irrational way. Their behavior is uncoordinated in the sense that cooperative social relationships and beak down. It is irrational in the sense that people’s actions are not appropriate for the goals they wish to achieve. The progress of a panic follows a fairly typical course. A sudden crisis occurs; people experience intense fear; normal social expectations are broken; each individual tries desperately to escape from the source of danger; mutual cooperation breaks down; and the situation becomes even more threatening as a result. Panics are especially likely to occur in unusual conditions in which everyday norms have little relevance, such as fires, floods, A. When people desperately try to escape from the source of danger. B. When a sudden crisis occurs. C. When a passenger aircraft makes a crash landing. D. When people gathers at the exit. [简答题]射水抽气器在运行中会发生哪些故障？如何处理？
[单选题]在生产、作业中违反有关安全管理的规定，因而发生重大伤亡事故或者造成其他严重后果的，处三年以下有期徒刑或者拘役；情节特别恶劣的，处三年以上七年以下有期徒刑，这是（ ）罪？
A.玩忽职守罪 B.重大责任事故罪 C.铁路运营安全事故罪 D.危险作业罪 [单选题] 辅机的过流保护是通过自动开关的( )方式执行的。
A.电磁脱扣 B.热脱扣 C.空气脱扣 [填空题]设备更换的废机油和清洗用废油，要集中（），严禁（）。
[单项选择]对于一个正偏峰分布的资料，下列哪项是正确的
A. 集中位置偏向数值较大一侧 B. 峰偏左，长尾向右侧 C. 峰偏右，长尾向左侧 D. 均数小于中位数 E. 适合用算术均数描述其集中位置 [填空题] 驼峰作业调车指挥工作的分工办法在（ ）内规定。
[单项选择]关于污泥机械脱水正确的是______。
A. 污泥机械脱水是以过滤介质两面的浓度差作为推动力 B. 有真空吸滤法、压滤法和离心法等 C. 在该过程中，滤液仅需克服过滤介质的阻力 D. 常用的脱水机械有离心脱水机、带式压缩机、真空过滤机等 [单项选择]医学伦理学尊重原则应除外的内容是
A. 公平分配卫生资源 B. 尊重病人及家属的自主性或决定 C. 尊重病人的知情同意权 D. 保守病人的秘密 E. 保护病人的隐私 [单选题]国有公司、企业、事业单位直接负责的主管人员，在签订、履行合同过程中，因严重不负责任被诈骗，致使国家利益遭受重大损失的，构成()
A.渎职罪 B.合同诈骗罪 C.签订、履行合同失职被骗罪 D.不构成犯罪 [单项选择]数据加密技术可以分为3类，下列不属于数据加密技术的是
A. 对称型加密 B. 不对称性加密 C. 可逆加密 D. 不可逆加密 [单选题]《普速铁路行车组织规则》规定，对装油、盐、卤、酸，易碎货物的车辆在调车作业通知单记事栏应填写( )。
A.跨 B.凹 C.J D.Z [单选题]笼形异步电动机常用的降压启动有( )启动、自耦变压器降压启动、星-三角降压启动。
A.A、转子串电阻 B.B、串电阻降压 C.C、转子串频敏 [单选题]空气与火场中未完全燃烧的热解物混合形成可燃性混合烟气当火势点燃这些可燃性混合烟气时可燃气体会极端快速的爆燃,并以高温火球的形式从排烟口喷出,这种现象称为( )。【单选题】
A. 轰燃 B. 闪燃 C. 回燃 D. 滚燃 [单项选择]soya-bean milk指的是（）
A. 奶精 B. 豆浆 C. 杯垫 D. 土司 [单项选择]八会穴中的脉会穴是
A. 阳陵泉 B. 悬钟 C. 太渊 D. 膻中 E. 中脘 [判断题]吊篮沿钢丝绳由提升机带动向上顺升,不手卷钢丝绳,理论上爬升高度有限制。
A.正确 B.错误 [单选题]在长沙的转报系统中GRA表示长沙-广州的（ ）。
A.线路 B.信道 C.地址 D.路由 [不定项选择题]共用题干
第二篇
Caffeine Caffeine is probably the most widely used drug in the world.Humans have been consuming caffeine for hundreds of years,primarily in the form of coffee,tea,and cocoa. Habitual coffee and tea drinkers had long been observed to have a lower incidence of non-melanoma（黑色素瘤）skin cancers , although no one knew why.A recent study found that caffeine affects skin cells damaged by ultraviolet radiation,a main cause of skin cancer. Caffeine interferes with a protein that cancerous cells need to survive,leaving the damaged cells to die before they become cancerous. Drinking caffeinated coffee has also been associated with a decreased incidence of endometrial（子宫内膜的）cancer-that is , cancer of the cells lining the uterus. The strongest effect appears to be in overweight women,who are at greatest risk for the disease.Researchers believe blood sugar,fat cells,and estrogen（雌性激素）may play a role. Although the mechanism remains unknown,peo- pie who drink more than two cups of coffee or tea a day reportedly have about half the risk of developing chronic liver disease as those who drink less than one cup of coffee daily;caffeinated coffee has also been as- sociated with lowered risk of cirrhosis（肝硬化）and liver cancer. While many of caffeine's undesirable effects,such as elevated heart rate and blood pressure,are brief, some short-term benefits,including pain relief,increased alertness,and increased physical endurance,have also been attributed to caffeine.As a component of numerous over-the-counter diet pills and pain relievers, caffeine increases their effectiveness and helps the body absorb them more quickly. By constricting（收缩） blood vessels in the brain , it can alleviate headaches一even migraines（偏头痛）一and can help counter the drowsiness（眩晕）caused by antihistamines（抗组胺药）. Caffeine does not alter the need for sleep,but it does offer a temporary solution to fatigue for people who need to stay alert. Research has shown that sleep-deprived individuals who consumed caffeine had improved memory and reasoning abilities,at least in the short term. Studies of runners and cyclists have shown that caffeine can improve their stamina一hence its addition to energy-boosting sports drinks. People who consume a lot of caffeine regularly may develop temporary withdrawal symptoms,headache being the most common,if they quit or cut back on it abruptly. Fortunately,these symptoms last only a day or two in most cases.Individuals who are more sensitive to the stimulatory side effects of caffeine may want to avoid it,but most doctors agree that the equivalent of three cups of coffee a day does not harm healthy people.There is no medical basis to give up daily caffeine and many reasons to include a moderate amount in one's diet. Caffeine is used to_________. A.reduce high blood pressure B.relieve headaches C.cure liver cancer D.treat skin cancer [多选题]常见的停连方式有（ ）。
A.重停 B.落停 C.扬停 D.直连 E.曲连 我来回答: 提交
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