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下列关于承诺延误与承诺超期的说法，错误的是（)。A．承诺超期是指受要约人发出的承诺由于外界原因下列关于承诺延误与承诺超期的说法，错误的是()。
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等量资金在不同时点上的价值不相等，根本的原因是通货膨胀的存在。 ()
听力原文： It's generally agreed that serious, violent crime has reached alarming proportions in the United States. A survey by the Law Enforcement Assistance Administration found that 61% of all women feel unsafe in their own neighborhoods at night; that 45% of the population is afraid to walk alone at night near their own homes; and that 47% own guns, large for self-protection.
Those arrested for crimes and disproportionately likely to be male, young, a member of a racial minority, and a city resident. Males are arrested about four times as often as females. Only in juvenile runaway cases and prostitution are females more often arrested. One is the sex role stereotyping which encourages males to be more aggressive and daring, while females are encouraged to be more passive and conforming to the males and norms. The second reason is the tendency of police officers and the courts to deal more kindly with female offenders. However, it should be noted, in the past decade, crime among females has been increasing at much faster rate than among males, a negative side effect which has been attributed to women challenging the traditional sex role of passivity and conformity.
Young people appear to commit far more than their share of crime, including the crimes that are classified by the FBI as most serious—rape, murder, robbery, arson, burglary, aggravated assault, auto theft. In 1985, 31% of all arrests were of person under tile age of 21, and 50% of all arrests were of persons under 25.
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A．It's not always clear why people behave in certain ways.B．People usually blame other
Section B
Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You should decide on the best choice.
Television has transformed politics in the United States by changing the way in which information is transmitted, by altering political campaigns, and by changing citizens' patterns of response to politics. By giving citizens independent access to the candidates, television diminished the role of the political party in the selection of the major party candidates. By centering politics on the person of the candidate, television accelerated the citizen's focus on character than issues.
Television has altered the forms of political communication as well. The messages on which most of us rely are briefer than they once were. The stump speech, a political speech given by traveling politicians and lasting 1.5 to 2 hours, which characterized nineteenth century political discourse, has given way to the 30-second advertisement and 10-second "sound bite(原声摘要)" in broadcast news. Increasingly the audience for speeches is not that standing in front of the politician but rather viewing audience who will hear and see a snippet(摘录) of the speech on the news.
In these abbreviated(缩减的) forms, much of what constituted the traditional political discourse of earlier ages has been lost. In 15 or 30 seconds, a speaker cannot establish the historical context that shaped the issue in question, cannot detail the probable causes of the problem, and cannot examine alternative proposals to argue that one is preferable to others. In snippets, politicians assert but do not argue.
Because television is an intimate medium, speaking through it required a changed political style. that was more conversational, personal, and visual than that of the old-style. stump speech. Reliance on television means that increasingly our political world contains memorable pictures rather than memorable words. Schools teach us to analyze words and print. However. in a world in which politics is increasingly visual, informed citizenship requires a new set of skills.
Recognizing the power of television's pictures, politicians craft televisual, staged events, called pseudo events, designed to attract media coverage. Much of the political activity we see on television news has been crafted by politicians, their speechwriters, and their public relations advisers for televised consumption. Sound bites in news and answers to questions in debates increasingly sound like advertisements.
It can be inferred from the passage that ______.
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