在证券市场发展初期,法制尚不健全、市场机制尚未理顺在遇到突发性事件时,证券监督管理部门一般较多采取( ),对证券市场进行监管。
患者,女,25岁。平素月经规律,身体健康。前一天无明显诱因突发高热,体温高达39℃,同时自觉阴道分泌物增多,呈脓性且伴有恶臭。随即出现下腹部剧烈疼痛,呈持续性,难以忍受。来院就诊时,行妇科检查发现宫颈抬举痛明显,盆腔触诊感觉有增厚,考虑可能为组织炎性水肿所致。血常规提示白细胞及中性粒细胞比例明显升高。该患者最可能的诊断是()
卵巢囊肿并发蒂扭转
急性阑尾炎
异位妊娠破裂
急性盆腔炎
子宫肌瘤红色样变
女,60岁。阵发性胸痛15天,每次发作持续10分钟左右,运动可诱发,近1周胸痛发作频率增加,休息时亦可有发作,有陈旧心肌梗死病史,该患者暂时不宜做的检查是( )。
心电图
超声心动图
动态心电图
冠状动脉造影
心电图负荷试验
属前列腺增生临床表现的是( )。
进行性排尿困难,夜尿增多
会阴部胀痛,疼痛向腰骶及大腿根部放射,尿频、尿急、尿痛
睾丸肿痛
排尿突然中断,疼痛,痛感放射至远端尿道
突发性尿线变细,排尿困难
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_____.
慢性肺源性心脏病伴急性呼吸道感染时,易诱发心力衰竭。其主要的作用因素是( )
病原体对心肌的毒性刺激
缺氧、二氧化碳潴留致肺小动脉痉挛
病原体增加肺毛细血管的通透性
发热引起低血容量,造成心排血量减少
继发性红细胞增多,血液黏度增加