题目内容
《安全生产法》规定追究法律责任的负有安全生产职责的部门工作人灵的违法行为，有下列哪几种（)。A．生《安全生产法》规定追究法律责任的负有安全生产职责的部门工作人灵的违法行为，有下列哪几种()。
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已知某债券在发行时附有可赎回条款，赎回价格为P0，以下关于折(溢)价债券的价格变动与利率之间的关系的曲线符合可赎回债券的基本特征的是()。
This made me reflect on the changes that have transformed Beijing since I came to the city 37 years ago. In those days, the bicycle was king. What sheer joy it was to cycle along with the hundreds (not thousands) of fellow pedallers (骑车人), never in fear of life and limb as one is now. I bought my first bike in 1963. It cost me 150 yuan-in those days three or four months' salary for the average city dweller.
Such changes! Good or bad？ Today, cycling is hazardous but bikes are easily affordable. Gone are the old wooden houses I remember in south Beijing and fast disappearing are the small, overcrowded courtyard houses lacking running water, central heating and bathroom. Very many Beijingers now live in more convenient, better-equipped flats in high-rises. But these very high-rises are swallowing up the unique character of the old city of narrow hutongs, age-old siheyuan and close-knit communities.
I loved years ago to cycle to Beihai to visit my friends (I then taught at China Foreign Affairs University). In spring I rode through the blue-green wheat fields, in summer through fields of tall maize (玉米). Further west; beyond Beijing Foreign Studies University there were the vegetable fields of the Evergreen Commune (四季青公社) and the rice paddies glistening in the summer sun. But now, as Beijing stretches out further and further, west, east, north, south, there's decent housing for families, busy offices for employment and large department stores and supermarkets where, if you have the money, there's little you cannot buy.
What is the principal purpose for the author to write this article？
What can we learn from the passage？
Pop stars today enjoy a style. of living which was once the prerogative only of Royalty. Wherever they go, people turn out in their thousands to greet them. The crowds go wild trying to catch a brief glimpse of their smiling, colorfully dressed idols. The stars are transported in their chauffeur driven Rolls-Royces, private helicopters or executive aeroplanes. They are surrounded by a permanent entourage of managers, press agents and bodyguards, photographs of them appear regularly in the press and all their comings and goings are reported, for, like Royalty, pop stars are news. If they enjoy many of the privileges of Royalty, they certainly share many of the inconveniences as well. It is dangerous for them to make unscheduled appearances in public. They must be constantly shielded from the adoring crowds which idolize them. They are no longer private individuals, but public property. The financial rewards they receive for this sacrifice cannot be calculated, for their rates of pay are astronomical.
And why not？ Society has always rewarded its top entertainers lavishly. The great days of Hollywood have become legendary: famous stars enjoyed fame, wealth and adulation on an unprecedented scale. By today's standards, the excesses of Hollywood do not seem quite so spectacular. A single gramophone record nowadays may earn much more in royalties than the films of the past ever did. The competition for the title Top of the Pops' is fierce, but the rewards are truly colossal.
It is only right that the stars should be paid in this way. Don't the top men in industry earn enormous salaries for the services they perform. to their companies and their countries？ Pop stars earn vast sums in foreign currency often more than large industrial concerns and the taxman can only be grateful for their massive annual contributions to the exchequer. So who would begrudge them their rewards？
It's all very well for people in humdrum jobs to moan about the successes and rewards of others. People who make envious remarks should remember that the most famous stars represent only the tip of the iceberg. For every famous star, there are hundreds of others struggling to earn a living. A man working in a steady job and looking forward to a pension at the end of it has no right to expect very high rewards. He has chosen security and peace of mind, so there will always be a limit to what he can earn. But a man who attempts to become a star is taking enormous risks. He knows at the outset that only a handful of competitors ever get to the very top. He knows that years of concentrated effort may be rewarded with complete failure. But he knows, too, that the rewards for success are very high indeed: they are the recompense for the huge risks involved and if he achieves them, he has certainly earned them. That's the essence of private enterprise.
The sentence Pop stars' style. of living was once the prerogative only of Royalty means ______.
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