目前影响牙周病流行的最直接的因素是
莎士比亚被认为是英国文学史上最杰出的戏剧家。下列不属于莎士比亚 “四大悲剧” 的是 ( )。
《奥赛罗》
《麦克白》
《罗密欧与朱丽叶》
《哈姆雷特》
患者症见阳痿不举,头晕,耳鸣,健忘,心悸易惊,胆怯多疑,夜多噩梦,有被惊吓史。舌质淡,苔薄白,脉弦细。治宜选用的方剂为( )
皮下注射后约10~15min内起效,主要用于控制餐后血糖的胰岛素或胰岛素类似物是( )
低精蛋白锌胰岛素
混合人胰岛素类似物(预混门冬胰岛素30)
甘精胰岛素
混合人胰岛素(30R)
赖脯胰岛素
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_____.
执行职务的医疗保健人员、卫生防疫人员发现甲类、乙类和监测区域内的丙类传染病患者、病原携带者或者疑似传染患者,必须按照国务院卫生行政部门规定的时限
下列资本市场理论发展形成的先后顺序中,正确的是( )。