新课程改革强调从单纯注重传授知识转变为引导学生学会学习、学会合作、学会生存、学会做人。这是实现( )的转变。
Passage2
Old stereotypes diehard. Picture a video-game player and you will likely imagine a teenage boy, byhimself, compulsively hammering away at a game involving rayguns and aliensthat splatter when blasted. Ten years ago that might have borne some relationto reality. But today a gamer is as likely to be a middle-aged commuterplaying "Angry Birds" on hersmartphone. In America, the biggest market, the average game-player is 37 yearsold. Two-fifths are female.
Over the past tenyears the video-game industry has grown from a small business to a huge, mainstreamone. With global sales of $56 billion in 2010, it is more than twice the sizeof the recorded-music industry. Despite the downturn, it is growing by almost9% a year.
Is this success dueto luck or skill? The answer matters, because the rest of the entertainmentindustry has tended to treat gaming as being a lucky beneficiary of broadertechnological changes. Video gaming, unlike music, film or television, had theluck to be born digital. In fact, there is plenty for old media to learn.
Video games have certainly been swept along bytwo forces: demography and technology. The first gaming generation-the childrenof the 1970s and early 1980s-is now over 30. Many still love gaming, and canafford to spend far more on it now. Meanwhile rapid improvements in computingpower have allowed game designers to offer experiences that are now often morecinematic than the cinema.
But even grantedthis good fortune, the game-makers have been clever. They have reached out tonew customers with new methods. They have branched out into education,corporate training and even warfare, and have embraced digital downloads andmobile devices with enthusiasm. Though big-budget games are still popular, muchof the growth now comes from "casual" games that are simple, cheap and playable in shortbursts on mobile phones or in web browsers.
The industry hasexcelled in a particular area-pricing. In an era when people are disinclined topay for content on the web, games publishers were quick to develop"freemium" models, where you rely on non-paying customers to build anaudience and then extract cash only from a fanatical few.
Asgaming comes to be seen as just another medium, its tech-savvy approachcould provide awelcome shot in the arm for existing media groups.
One special factor of the success of video games is that_____.
下列说法中,正确的是( )。
Ⅰ.上海证券交易所规定的融资融券保证金比例不得低于60%
Ⅱ.上海证券交易所规定的维持担保比例下限为150%
Ⅲ.上海证券交易所规定融资融券业务最长时限为6个月
Ⅳ.维持担保比例=(现金+信用证券账户内证券市值总和)/(融资买入金额+融券卖出证券数量×当前市价+利息及费用总和)
患者,男,35岁。于午饭后即开始出现胃部疼痛,胀满食少,后感觉脐周硬结、闷痛、拒按,于1日无改善情况下,前来医院就诊。诊断结果:因蛋白质进食过多而导致的继发性消化不良。
下列适宜用于该患者的药物是
从能量意外释放理论出发,预防伤害事故就是防止能量或危险物质的意外释放,防止人体与过量的能量或危险物质接触。下列措施中,属于限制能量的是( )。