【正文】 prevail over human beings.B)Computers have unmatched potential.C)Computers are man’s potential rivals.D)Computers can bee highly intelligent. does the author mean by AI machines acting ethically?A)They are capable of predicting possible risks.B)They weigh the gains and losses before reaching a decision.C)They make sensibleTranslation 這極大地改變了許多人的閱讀方式。但調(diào)查顯示，盡管能手機(jī)閱讀市場穩(wěn)步增長，超半數(shù)成年人仍喜歡讀紙質(zhì)書。大量移動應(yīng)用程序的開發(fā)使人們能用手機(jī)讀小說和其他形式的文學(xué)作品。cars improve, they will save lives. They will make fewer mistakes than human drivers do. Sometimes, however, they will face a choice between lives. Should the cars be programmed to avoid hitting a child running across the road, even if that will put their passengers at risk? What about making a sudden turn to avoid a dog? What if the only risk is damage to the car itself, not to the passengers?Perhaps there will be lessons to learn from driverless cars, but they are not superintelligent beings. Teaching ethics to a machine even more intelligent than we are will be the bigger challenge.About the same time as AlphaGo’s triumph, Microsoft’s ‘chatbot’ took a bad turn. The software, named Taylor, was designed to answer messages from people aged 1824. Taylor was supposed to be able to learn from the messages she received. She was designed to slowly improve her ability to handle conversations, but some people were teaching Taylor racist ideas. When she started saying nice things about Hitler, Microsoft turned her off and deleted her ugliest messages.AlphaGo’s victory and Taylor’s defeat happened at about the same time. This should be a warning to us. It is one thing to use AICalifornia has been facing a drought for many years now, with certain areas even having to pump freshwater hundreds of miles to their distribution system. The problem is growing as the population of the state continues to expand. New research has found deep water reserves under the state which could help solve their drought crisis. Previous drilling of wells could only reach depths of 1,000 feet, but due to new pumping practices, water deeper than this can now be extracted （抽取）. The team at Stanford investigated the aquifers（地下蓄水層）below this depth and found that reserves may be triple what was previously thought.It is profitable to drill to depths more than 1,000 feet for oil and gas extraction, but only recently in California has it bee profitable to pump water from this depth. The aquifers range from 1,000 to 3,000 feet below the ground, which means that pumping will be expensive and there are other concerns. The biggest concern of pumping out water from this deep in the gradual settling down of the land surface. As the water is pumped out, the vacant space left is pacted by the weight of the earth above.Even though pumping from these depths is expensive, it is still cheaper than desalinating（脫鹽）the ocean water in the largely coastal state. Some desalination plants exist where feasible, but they are costly to run and can need constant repairs. Wells are much more reliable sources of freshwater, and California is hoping that these deep wells may be the answer to their severe water shortage.One problem with these sources is that the deep water also has a higher level of salt than shallower aquifers. This means that some wells may even need to undergo desalination after extraction, thus increasing the cost. Research from the exhaustive study of groundwater from over 950 drilling logs has just been published. New estimatesbut the movement is making headway these days.45. Americans’ high rates of various illnesses result from the way they eat.Section CDirections:There is growing evidence from research that food helps patients recover from various illnesses.39. A healthy breakfast can be prepared quickly and easily.40. Training a patient to prepare healthy food can change their life.41. One foodasmedicine program not only prescribes food for treatment but teaches patients howfat and processed foods in the American diet contribute to the nation’s high rates of obesity, diabetes and heart disease. According to the World Health Organization, 80 percent of deaths from heart disease and stroke are caused by high blood pressure, tobacco use, elevated cholesterol and low consumption of fruits and vegetables.[H] “It’s a different paradigm（范式）“And only 5 percent of our food is plantbased food. I think we should try to reverse that.”‘Sho