单项选择题 The Threat to Kiribati The people of Kiribati are afraid that one day in the not-too-distant future, their country will disappear from the face of the earth - literally. Several times this year, the Pacific island nation has been flooded by a sudden high tide. These tides, which swept across the island and destroyed houses, came when there was neither wind nor rain. 'This never happened before,' say the older citizens of Kiribati.What is causing these mysterious high tides? The answer may well be global warming. When fuels like oil and coal are being burned, pollutants (污染物) are released; these pollutants trap heat in the earth's atmosphere. Warmer temperatures cause water to expand and also create more water by melting glaciers (冰川)ll) and polar (极地的) ice caps.If the trend continues, scientists say, many countries will suffer. Bangladesh, for example, might lose one-fifth of its land. The coral (珊瑚) island nations of the Pacific, like Kiribati and the Marshall Islands, however, would face an even worse fate - they would be swallowed by the sea. The loss of these coral islands would be everyone's loss. Coral formations are home to more species than any other place on earth.The people of these nations feel frustrated. The sea, on which their economies have always been based, is suddenly threatening their existence. They don't have the money for expensive technological solutions like seawalls. And they have no control over the pollutants, which are being released mainly by activities in large industrialized countries. All they can do is to hope that industrialized countries will take steps to reduce pollution. 第 16 题 The people of Kiribati worry that one day their country will be taken away by a sudden high tide.A．RightB．WrongC．Not mentioned

未知题型 下表显示了在一个果蝇群体中刚毛数量的分布情况： 计算平均值、方差以及标准差。

单项选择题 Why Would They Falsely Confess?Why on earth would an innocent personfalsely confess to committing a crime? To most people, it just doesn't seemlogical. But it is logical, say experts, if you understand what can happen in apolice interrogation (审讯) room.Under the right conditions, people's mindsare susceptible (易受影响的)to influence,and the pressure put on suspects during policequestioning is enormous. __________(46)'Thepressure is important to understand, because otherwise it's impossible to understandwhy someone would say he did something he didn't do. The answer is: to put anend to an uncomfortable situation that will continue until he doesconfess.'Developmental psychologist Mary Redlichrecently conducted a laboratory study to determine, how likely people are toconfess to things they didn't do. __________(47) The researchers thenintentionally crashed the computers and accused the participants of hitting the'alt' key to see if they would sign a statement falsely takingresponsibility.Redlich's findings clearly demonstrate howeasy it can be to get people to falsely confess: 59 percent of the young adultsin the experiment immediately confesseD．__________ (48) Of the 15- to16-year-olds, 72 percent signed confessions, as did 78 percent of the 12- to13-year-olds.'There's no question that youngpeople are more at risk,' says Saul Kassin, a psychology professor at Williams College, who has done similar studieswith similar results.__________ (49)Both Kassin and Redlich note that the entire'interrogation' in their experiments consisted of a simpleaccusation--not hours of aggressive questioning--and still, most participantsfalsely confesseD．__________ (50) 'In some ways,' says Kassin,'false confession becomes a rational decision.' A．In her experiment, participantswere seated at computers and.told'not tohit the 'alt'key, becausedoing so would crash the systems.B．Because of the stress of apolice interrogation, they conclude, suspects can become convinced that falselyconfessing is the easiest way out of a bad situation.C．'It's a little likesomebody's working on them with a dental (牙齿的) drill,' says Franklin Zimring, a lawprofessor at the University of California at Berkeley.D．'But the baseline is thatadults are highly vulnerable too.'E．The court found him innocent andhe was released.F．Redlich also found that theyounger the participant, the more likely a false confession. 第 46 题 请选择（46）处的最佳答案．