Directions:
In the following article, some sentences have been removed. For Questions 1-5, choose the most suitable one from the list A-G to fit into each of the numbered blanks. There are two extra choices, which do not fit in any of the blanks. Mark your answers on ANSWER SHEET. (10 points)
        In the movies and on television, artificial intelligence is typically depicted as something sinister that will upend our way of life. When it comes to AI in business, we often hear about it in relation to automation and the impending loss of jobs, but in what ways is AI changing companies and the larger economy that don’t involve doom-and-gloom mass unemployment predictions?
        A recent survey of manufacturing and service industries from Tata Consultancy Services found that companies currently use AI more often in computer-to-computer activities than in automating human activities. One common application? Preventing electronic security breaches, which, rather than eliminating IT jobs, actually makes those personnel more valuable to employers, because they help firms prevent hacking attempts.
        Here are a few ways AI is aiding companies without replacing employees: 
        Better hiring practices
        Companies are using artificial intelligence to remove some of the unconscious bias from hiring decisions. “There are experiments that show that, naturally, the results of interviews are much more biased than what AI does,” says Pedro Domingo, author of The Master Algorithm. How the quest for the Ultimate learning Machine Will Remake Our World and a computer science（1） One company that’s doing this is called Blendoor. It uses analytics to help identify where there maybe bias in the hiring process.
        More effective marketing
        Some AI software can analyze and optimize marketing email subject lines to increase open rates. One company in the UK, Phrases, claims their software can outperform humans by up to 10 percent when it comes to email open rates. This can mean millions more in revenue.（2）These are “tools that help people use data, not a replacement for people,” says Patrick H Winston, a professor of artificial intelligence and computer science at MIT.
        Saving customers money
        Energy companies can use AI to help customers reduce their electricity bills, saving them money while helping the environment Companies can also optimize their own energy use and cut down on the cost of electricity. Insurance companies, meanwhile, can base their premiums on AI models that more accurately access risk. “（3）” says Domingos. 

        Improved accuracy
        “Machine learning often provides a more reliable form of statistics which makes data more valuable,” says Winston, “It helps people make smarter decisions.”（4） 

        Protecting and maintaining infrastructure
        A number of companies, particularly in energy and transportation, use AI image processing technology to inspect infrastructure and prevent equipment failure or leaks before they happen. “If they fail first and then you fix them, its very expensive,” says Domingo’s.（5）