题目内容
Most paragraphs have a "topic sentence" which expresses the central idea. The remaining sentences in the same paragraph expand or support that idea. It has been estimated that between 60-90% of all expository(阐述，说明) paragraphs in English have the topic sentences placed at the beginning of the paragraphs. Always pay special attention to the first sentence of a paragraph; it is most likely In give you the main idea.Sometimes, though, the first sentence in the paragraph does not have the feel of a main idea" sentence. It does not seem to give us enough information to justify a paragraph. The next most likely place to look for the topic sentence is the last sentence of the paragraph. Take this paragraph for example:"Some students prefer a strict teacher who tells them exactly What to do. Others prefer to be left to work on their own. Still others like a democratic type of class. No one teaching method can be devised to satisfy types of class at the same time."Remember that the opening and closing paragraphs of a passage or chapter are particularly important. The opening paragraph suggests the general direction and context of the piece, while the closing paragraph often summarizes the very essence of what has been said. The closing paragraph often summarizes（）of what has been said.
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以下程序运行后的输出结果是 【17】 。struct NODE{ int k； struct NODE *link；};main(){ struct NODE m[5]，*p=m，*p=m,*q=m+4； int i=0； while(p!=q) { p-＞k=++i; p++ q-＞k=i++; q--； } q-＞k=i； for(i=0；i＜5；i++) printf("%d"，m[i].k)； ptintf("\n");}
Twenty-seven years ago, Egypt revised its secular constitution to enshrine Muslim sharia as "the principal source of legislation". To most citizens, most of the time, that seeming contradiction-between secularism and religion-has not made much difference. Nine in ten Egyptians are Sunni Muslims and expect Islam to govern such things as marriage, divorce and inheritance. Nearly all the rest profess Christianity or Judaism, faiths recognised and protected in Islam. But to the small minority who embrace other faiths, or who have tried to leave Islam, it has, until lately, made an increasingly troubling difference. Members of Egypt’s 2,000-strong Bahai community, for instance, have found they cannot state their religion on the national identity cards that all Egyptians are obliged to produce to secure such things as driver’s licenses, bank accounts, social insurance and state schooling. Hundreds of Coptic Christians who have converted to Islam, often to escape the Orthodox sect’s ban on divorce, find they cannot revert to their original faith. In some cases, children raised as Christians have discovered that, because a divorced parent converted to Islam, they too have become officially Muslim, and cannot claim otherwise. Such restrictions on religious freedom are not directly a product of sharia, say human- rights campaigners, but rather of rigid interpretations of Islamic law by over-zealous officials. In their strict view, Bahai belief cannot be recognised as a legitimate faith, since it arose in the 19th century, long after Islam staked its claim to be the final revelation in a chain of prophecies beginning with Adam. Likewise, they brand any attempt to leave Islam, whatever the circumstances, as a form of apostasy, punishable by death. But such views have lately been challenged. Last year Ali Gomaa, the Grand Mufti, who is the government’s highest religious adviser, declared that nowhere in Islam’s sacred texts did it say that apostasy need be punished in the present rather than by God in the afterlife. In the past month, Egyptian courts have issued two rulings that, while restricted in scope, should ease some bothersome strictures. Bahais may now leave the space for religion on their identity cards blank. Twelve former Christians won a lawsuit and may now return to their original faith, on condition that their identity documents note their previous adherence to Islam. Small steps, perhaps, but they point the way towards freedom of choice and citizenship based on equal rights rather than membership of a privileged religion. According to the text, what impact did the revision of Egypt’s secular constitution have on its citizens’ lives
结合给定资料，请你就政府部门在“优化信息环境、遏制信息诈骗方面应进一步采取哪些措施”给出合理的建议。 [要求] 建议合理可行，有针对性，字数不超过300字。
Remember Second Life, the virtual world that was supposed to become almost as important as the first one Now populated by no more than 84,000 avatars at a time, it has turned out to be a prime example of how short-lived Internet fads can be. Yet if many adults seem to have given up on virtual worlds, those that cater to children and teenagers are thriving. Several have even found a way to make money. In America, nearly 10 million children and teenagers visit virtual worlds regularly, estimates eMarketer, a market researcher-a number the firm expects to increase to 15 million by 2013．As in January, there were 112 virtual worlds designed for under-18s with another 81 in development, according to Engage Digital Media, a market research firm. All cater to different age groups and tastes. In Club Penguin, the market leader, which was bought by Disney in 2007 for a whopping $ 700 million, primary-school children can take on a penguin persona, fit out their own igloo and play games. Habbo Hotel, a service run from Finland, is a global hangout for teenagers who want to customise their own rooms and meet in public places to attend events. Gala Online, based in Silicon Valley, offers similar activities, but is visited mostly by older teens who are into Manga comics. Not a hit with advertisers, these online worlds earn most of their money from the sale of virtual goods, such as items to spruce up an avatar or a private room. They are paid for in a private currency, which members earn by participating in various activities, trading items or buying them with real dollars. This sort of stealth tax seems to work. At Gala Online, users spend more than $1 million per month on virtual items, says Craig Sherman, the firm’s chief executive. Running such a virtual economy is not easy, which is why Gaia has hired a full-time economist to grapple with problems that are well known in the real world, such as inflation and an unequal distribution of wealth. There are other barriers that could limit the growth of virtual worlds for the young, but the main one is parents. Many do not want their offspring roaming virtual worlds, either because they are too commercial or are thought to be too dangerous. Keeping them safe is one of the biggest running costs, because their sponsors have to employ real people to police their realms. Youngsters are also a fickle bunch, says Simon Levene of Accel Partners, a venture- capital firm. Just as children move from one toy to another, they readily switch worlds or social networks, often without saying goodbye. Even so, Debra Aho Williamson, an analyst at eMarketer, believes "these worlds are a training ground for the three-dimensional web". If virtual worlds for adults, which so far have been able to retain only hardcore users, manage to hang on for a few years, they may yet have a second life. Why do online games not mean "a hit with advertisers"
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