单选题 PowerPoint2003的主要功能是（）。

单选题 黄凝在某网站上看到一张非常适合用于研究性学习结题报告的图片，可是这个网站设置了权限，不允许任何人从该网站上下载文件。黄凝只得向同学求助，大家给了她很多办法，以下办法中不可行的是（）。

单选题 以下属于应用软件的是（）。

单选题 Passage 2 For Chen Hua，28，an automobile engineer in Shanghai，reading out English text aloud after taking pronunciation lessons on a mobile app has become an evening routine. Chen might skip dinner，but wouldn't trade even one language class delivered by the app for anything. Not having been using English much since leaving college，Chen feels the pressure to pick it up using spare time. The"pressure"arises from a constant fear of being left behind as English-proficient peers appear to get ahead. Academic circles refer to this as "middle-class anxiety"，which is grasping some sections of China's population. In a report released by leading online recruiter Zhaopin in January，one-fourth of surveyed white-collar workers said they feel more stressed than inspired，citing reasons from unstable paychecks to gloomy career prospects. Most important of all many people worry that the worth and utility of their knowledge and qualifications could erode due to thriving technological progress，globalism and entrepreneurship. "Intensified peer pressure, especially at workplaces, is one factor that fuels our business,"said Wang Yi, CEO of Liulishuo, an English-learning app that Chen uses every day. Wang,a Princeton computer science graduate and former product manager at Google Inc, launched the app over five years ago with the intention to disrupt China's hidebound brick-and-mortar language schools. Liulishuo-it is Chinese for"speaking fluently"-brings social media and gaming elements to the genre. Wang said that unlike pre-school or K12 education, the adult-learning market is characterized by an inherent desire for self-improvement. Students of online adult education courses feel the fee is money well spent. To personalize offerings, Liulishuo has introduced big data and algorithms to quantify multiple dimensions of speech, as well as automatically tailor courses so that the courses could walk a fine line between challenging the students and discouraging them to the extent that they quit learning. Actually, this is not just confined to language courses. China's growing learners have shown they will spend time on the right educational programs. Which of the following can be the best title for the text?

单选题 Passage2 Come on-Everybody's doing it. That whispered message，half invitation and half forcing，is what most of us think of when we hear the words peer pressure. It usually leads to no good-drinking，drugs and casual sex. But in her new book Join the Club，Tina Rosenberg contends that peer pressure can also be a positive force through what she calls the social cure，in which organizations and officials use the power of group dynamics to help individuals improve their lives and possibly the word. Rosenberg，the recipient of a Pulitzer Prize，offers a host of examples of the social cure inaction: In South Carolina, a state-sponsored antismoking program called Rage Against the Haze sets out to make cigaretes  uncool. In South Africa, an HIV-prevention initiative known as loveLife recruits young people to promote safe sex among their peers. The idea seems promising, and Rosenberg is a perceptive observer. Her critique of the lameness of many public-health campaigns is spot-on: they fail to mobilize per pressure for healthy habits, and they demonstrate a seriously flawed understanding of psychology."Dare to be different, please don't smoke!" pleads one billboard campaign aimed at reducing smoking among teenagers-teenagers, who desire nothing more than fitting in. Rosenberg argues convincingly that public-health advocates ought to take a page from advertisers, so skilled at applying peer pressure. But on the general effectiveness of the social cure, Rosenberg is less persuasive. Join the Club is filled with too much irrelevant detail and not enough exploration of the social and biological factors that make peer pressure so powerful. The most glaring flaw of the social cure as its presented here is that it doesn't work very well for very long. Rage Against the Haze failed once state funding was cut. Evidence that the loveLife program produces lasting changes is limited and mixed. There's no doubt that our peer groups exert enormous influence on our behavior. An emerging body of research shows that positive health habits-as well as negative ones-spread through networks of friends via social communication. This is a subtle form of peer pressure: we unconsciously imitate the behavior we see every day. Far less certain, however, is how successfully experts and bureaucrats can select our peer groups and steer their activities in virtuous directions. It's like the teacher who breaks up the troublemakers in the back row by pairing them with better-behaved classmates. The tactic never really works. And that's the problem with a social cure engineered from the outside: in the real world, as in school, we insist on choosing our own friends. Paragraph 5 shows that our imitation of behaviors.

单选题 Which of the following activities is the best for training detailed reading?