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In a step that should help make the Internet safer for consumers, anti-virus giant Symantec on Wednesday will introduce a protection system designed to anticipate new ill-meaning programs that try to steal onto your computer.For decades, anti-virus protection has worked by reacting to new ill-meaning programs. Researchers rush to identify bad code, then create and distribute filters for it. But cybercriminals have got so fast at escaping the latest filters that protection often comes too late.Symantec’s new system, called Quorum, continuously predicts whether any new program that attempts to run on your PC is good or bad. It then takes steps to isolate the bad code. "We’re closing a major gap the bad guys have been using to deliver their ill-meaning software," says Rowan Trollope, senior vice president of consumer products.Symantec becomes the fourth major anti-virus firm—and the largest—to add predictive capabilities to traditional reactive anti-virus systems. Since February, McAfee, Panda Security and Trend Micro have introduced similar predictive technologies.Computer infectious most often spread when a PC user clicks on an altered Web link that arrives in an e-mall or social-network message, or appears in search results for questions on Google, Bing and Yahoo Search. What’s more, millions of lawful Web pages—unknowingly altered by hackers—can also infect a PC during a page visit.Cybercriminals use infected PCs to spread junk e-mails, steal data and hijack online banking accounts. Infectious can change hourly, forcing anti-virus Firms to create and deliver thousands of filters each day. "The amount of ill-meaning software produced today has required all of us to change the approach we take in combating it," says Trend Micro senior manager Jon Clay. Trend began offering predictive protection to business customers in May. A consumer version is due next year."There is a natural evolution taking place," says Mike Gallagher, chief technology officer for McAfee, which rolled out its Artemis system for consumers and businesses in February.Symantec introduces Quorum in its new Norton Internet Security 2010 system for consumers priced at $70 for a one-year subscription; McAfee’s consumer subscription is priced similarly. Panda Security’s free consumer version of its Panda Cloud anti-virus product has been out since April. In the past decades, anti-virus protection hasn’t worked effectively because（）
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下面函数返回数组中最大元素的下标，数组中元素个数为t，将程序补充完整。 int findmax(int s[],int t) int k,p; for(p=0,k=p;p＜t;p++) if k=p; return k;
重载函数的实现和功能不同，但函数的 相同。
Women are on the verge of outnumbering men in the workforce for the first time, a historic reversal caused by long-term changes in women’s roles and massive job losses for men during this recession.Women held 49.83% of the nation’s 132 million jobs in June and they’re gaining the vast majority of jobs in the few sectors of the economy that are growing, according to the most recent numbers available from the Bureau of Labor Statistics. That’s a record high for a measure that’s been growing steadily for decades and accelerating during the recession. At the current pace, women will become a majority of workers in October or November."Women have struggled long and hard to get to this point," says labor economist Heidi Hartmann, president of the Institute for Women’s Policy Research.The change reflects the growing importance of women as wage earners, but it doesn’t show full equality, Hartmann says. On average, women work fewer hours than men, hold more part-time jobs and earn 77% of what men make, she says. Men also still dominate higher-paying executive ranks.Women have been a growing share of the once heavily male labor force for nearly a century, recording big bumps during epoch-making events such as World War Ⅱ. This time, the boost came from a severe recession that has been brutal on male-dominated professions such as construction and manufacturing.The only parts of the economy still growing—health care, education and government—have traditionally hired mostly women That dominance has increased in part because federal stimulus funding directed money to education, health care and state and local governments.The gender transformation is especially remarkable in local government’s 14.6 million-person workforce. Cities, schools, water authorities and other local legal power have cut 86,000 men from payrolls during the recession—while adding 167,000 women, according to the Bureau of Labor Statistics.Equality in workforce numbers reflects a long-term cultural change, says Maureen Honey, author of Creating Rosie the Riveter, a book about the government’s campaign to persuade women to work outside the home during World War Ⅱ. "The image that the man has to be the breadwinner has changed," Honey says. What happens to the workforce during this recession（）
19世纪后半期，美、德、日经济迅速发展的原因。
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