单项选择题

Television—that most pervasive (遍布的) and persuasive of modern technologies, marked by rapid change and growth—is moving into a new era, an era of extraordinary sophistication and versatility, which promises to reshape our lives and our world. It is an electronic revolution of sorts, made possible by the marriage of television and computer technologies.
The word "television", derived from its Greek (tele: distant) and Latin (vision: sight) roots, can literally be interpreted as sight from a distance. Very simply put, it works in this way: through a sophisticated system of electronics, television provides the capability of converting an image (focused on a special photoconductive plate within a camera) into electronics impulses, which can be sent through a wire or a cable. These impulses, when fed into a receiver (television set), can then be electronically reconstituted into that same image.
Television is more than just an electronics system, however. It is a means of expression, as well as a vehicle for communication, and as such becomes a powerful tool for reaching other human beings.
The field of television can be divided into two categories determined by its means of transmission. First, there is broadcast television, which reached the masses through broad-based airwave transmission of television signals. Second, there is non-broadcast television, which provided for the needs of individuals or specific interest groups through controlled transmission techniques.
Traditionally, television has been a medium of the masses. We are most familiar with broadcast television because it has been with us for thirty-seven years in a form similar to what exists today. During those years, it has been controlled, for the most part, by the broadcast networks, ABC, NBC, and CBS, who have been the major purveyors (传播者) of the news, information and entertainment. These giants of broadcasting have not only shaped television but our perception (感觉) as well. We have come to look upon the picture tube as a source of entertainment, placing our role in this dynamic medium as the passive viewer. Which of the following statements about the relationship between television and its viewers can best be inferred from the passage

A.Viewers do not take an active role in watching television
B.Viewers would prefer increased news coverage
C.Viewers like to use television to reach other human beings
D.Viewers are grown tired of television
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问答题
世界人口突破70亿,地球资源日益减少,人们忧心忡忡。中国宣称从1979年计划生育政策实施以来,中国已有效控制了出生率。如果没有计划生育,中国这个人口最多的国家就会多出几千万的人口。事实上,没有一个国家像中国这样大力度地、大规模地执行这项政策。据第六次人口普查报告,中国现在有13.7亿人口。不过,西方社会学家和经济学家一直警告说,再过三十年,中国将成为世界上唯一的在没有进入发达社会之前就面临老龄社会的发展中国家。和欧洲相比,中国面临老龄化危机的进程更快。五年后,中国60岁以上的人口将从现在1.78亿增长到2.21亿。到2050年,中国四分之一的人口将超过65岁。60岁以上的人口有半数是独居老人,这一点是以前不曾想象的,要知道,以前中国人可是四代同堂。现在一个孩子要负担父母两人和祖辈四人,这个倒金字塔对每个人来说都是挑战。越来越多的人移居到城市工作,大城市面临更大的压力,而中小型城市不能给人们提供足够的就业机会。出生于1962年到1972年这十年间的中国人退休后,这种压力会更大。这十年间平均每年有3000万婴儿出生,现在每年却只有600万到700万婴儿出生。国家人口和计划生育委员会没有放开长期的计划生育政策,因为人口过多仍然是中国社会和经济发展面临的主要挑战之一。