题目内容
The loudest outcry (大声疾呼) about poverty seemed to come in the wealthiest country by far in the world. According to most calculations, through most of the 1945-1970 period the United States had a standard of living well above Europe’’s and many times above the world average. Yet protests about grinding poverty, hunger, and dreadful need proceed from the United States than from countries with one fortieth of their living standard. (An annual per capita income of eight dollars is typical of much of Africa and Asia and not a little of South America.) It would seem strange to these people(they were only aware of the fact) that American radicals demand a retreat from an American commitment to the far concerns of the globe so that the money thus saved can be spent raising the standard of living of underprivileged Americans. What this last point suggests is not so much that human wants all never to be satisfied though this is doubtless true, and the American suburbanite (郊区居民) deprived of his second car and his color TV suffers just as acutely as an African farmer in need of a second cow and a screen door. Rather, it suggests the extent of contemporary broach (违背) of social norms—the emancipation (解放) of the individual self. People have learned that their wants are sacred and right ought to be satisfied. They have learned to consider any obstacle to personal fulfillment an intolerable insult They have greatly expended the circle of self-awareness. They no longer accept sharp limitations on individual desires in the name of the group. The amount of potential human discontent has always been infinite misery, failure, misfitting, bitterness, hatred, envy beyond telling. It has usually failed of utterance, and in the past it was accepted passively as being beyond help. Who suffer more acutely according to the passage
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The loudest outcry (大声疾呼) about poverty seemed to come in the wealthiest country by far in the world. According to most calculations, through most of the 1945-1970 period the United States had a standard of living well above Europe’’s and many times above the world average. Yet protests about grinding poverty, hunger, and dreadful need proceed from the United States than from countries with one fortieth of their living standard. (An annual per capita income of eight dollars is typical of much of Africa and Asia and not a little of South America.) It would seem strange to these people(they were only aware of the fact) that American radicals demand a retreat from an American commitment to the far concerns of the globe so that the money thus saved can be spent raising the standard of living of underprivileged Americans. What this last point suggests is not so much that human wants all never to be satisfied though this is doubtless true, and the American suburbanite (郊区居民) deprived of his second car and his color TV suffers just as acutely as an African farmer in need of a second cow and a screen door. Rather, it suggests the extent of contemporary broach (违背) of social norms—the emancipation (解放) of the individual self. People have learned that their wants are sacred and right ought to be satisfied. They have learned to consider any obstacle to personal fulfillment an intolerable insult They have greatly expended the circle of self-awareness. They no longer accept sharp limitations on individual desires in the name of the group. The amount of potential human discontent has always been infinite misery, failure, misfitting, bitterness, hatred, envy beyond telling. It has usually failed of utterance, and in the past it was accepted passively as being beyond help. In the second paragraph, the author suggests that_____..
The disease, which attacks the brain and is always fatal, entered the food chain when cattle were fed the ground-up brains and spinal cords of slaughtered sheep and other animals contaminated with the disease. Fast food’’s bad effect doesn’’t end with fears of beef contamination. Critics in the U.S. also tag all those sacks of burgers and flies with helping to 【1】 another serious health problem: obesity. Currently about 44 million American adults are obese; another 6 million are 【2】 "super-obese"—more than 100 pounds overweight. The CDC found that in 1991, only 4 states had obesity 【3】 higher than 15 percent, but by last year the number had 【4】 to 31 states. In every state, obesity was increasing in all age 【5】 . And today’’s teens, the agency says, are three times more likely to be overweight than teens in the 19【10】s. Though no study has yet established a 【6】 link between fast food and obesity rates, the expansion of fast-food chains 【7】 to be accompanied by rising waves of fat. In China, the number of overweight teens 【8】 . At the same time, similar weight 【9】 occurred in Japan and Great Britain 【10】 fast-food chains expanded in those countries.
阅读下面短文，回答文后问题。 20世纪60年代，天文学家发现了一种新型的变星，它有规律地发出射电脉冲讯号，所以取名为脉冲星。脉冲周期很短，最长为4.3秒，最短的只有0.0016秒，而且十分稳定准确，间隔的误差仅为0.00000001秒。 什么样的天体能如此快速而稳定地发射脉冲讯号一个天体发生周期性变化，其可能的机制不外乎三种：轨道运动、脉动和自转。显然，前二者是没有可能的，不可能设想恒星相互绕转的周期会短到0.033秒。同理，脉动周期也不会短到不及几百分之一秒，且脉动不具有那样严格的准确性，所以，脉冲星不是脉动变星。剩下的惟一可能是恒星自转。可是，如此“疯狂般”的自转，不要说普通恒星承受不了，连白矮星那样致密的天体也会分崩离析。于是，学者们认定，它只能是人们早已预言的中子星。 中子星是由中子组成的恒星。这是由于恒星演化到晚期，能量耗竭。若经引力塌缩，其剩余质量大于某一极值时，电子运动都不能抗衡原子核吸引力，就继续塌缩，经逆β衰变形成大量自由中子，只是恒星密度很大，体积很小，形成中子星。中子星的直径只有几十公里，而它的质量却可以超过太阳。白矮星的密度已使人惊叹不已，但中子星的密度比它还要高出1亿倍以上。每立方厘米的这种物质，可达几亿吨到10亿吨。这样越高密度的天体，有足够强大的白引力，不致因高速自转而瓦解。 中子星是如何发射脉冲的呢学者们认为，在这样的天体上可能形成一种条件，使它的射电波主要是从其表面的局部地区发射出来，而其他部分的辐射很弱，这样，中子星会像一个旋转着的喷头一样发出射电波，每转一周便朝观测者方向射出一束电波。这样间歇性的“闪烁”被称为“灯塔效应”。 “脉冲星”名称是指天体辐射的表现形式；“中子星”则表明这种恒星的物理性质。它已被观测所证实。 (摘自陈自悟《地球概论》，高等教育出版社，1997) 下面关于中子星的相关描述不正确的是：
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