7 . ( I ) The General Dynamics F−16 Fighting Falcon is a single−engine supersonic multirole fighter aircraft originally developed by General Dynamics for the United States Air Force ( USAF ). ( II ) Designed as an air superiority day fighter , it evolved into a successful all−weather multirole aircraft . ( III ) Over 4,500 aircraft have been built since production was approved in 1976 . ( IV ) The U . S . Navy traces its origins to the Continental Navy , which was established during the American Revolutionary War . ( V ) Although no longer being purchased by the U . S . Air Force , improved versions are being built for export customers .
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10 . ( I ) Major depressive disorder , also known as depression among public , is a mental disorder . ( II ) It is characterized by at least two weeks of low mood that is shown across almost all situations in daily life . ( III ) Major depressive disorder affected approximately 216 million people in 2015 . ( IV ) The disease is not related to the “ depressive state ” that is used among the people , but it is a type of disease which is separated from this mood completely and in many ways . ( V ) It is often accompanied by low self-esteem , low energy , loss of interest in even normally enjoyable activities , and pain without a clear reason .
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8 . ( I ) Fitness , as we know it today , seems to be a relatively modern invention−something that started vaguely in the 70s with jogging and Jazzercize . ( II ) But physical exercise obviously goes back much further than that , to a time where people wouldn ’ t have thought of it as working out , but rather a way of life . ( III ) Centuries and millennia ago , they did not have all the machines and weights and gyms that we have today , and yet they were in better shape than we are . ( IV ) During this era in physical fitness history , primitive man was constantly on the move as a hunter / gatherer . ( V ) To understand how to get used to the modern fitness culture , it ’ s helpful to take a look at the history of exercise .
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9 . ( I ) American basketball league was founded in New York City on June 6 , 1946 , as the Basketball Association of America ( BAA ). ( II ) The league adopted the name National Basketball Association on August 3 , 1949 , after merging with its rival National Basketball League ( NBL ). ( III ) There have always been legends in this league . ( IV ) The league ’ s several international as well as individual team offices are directed out of its head offices located in the Olympic Tower at 645 Fifth Avenue in New York City . ( V ) NBA Entertainment and NBA TV studios are directed out of offices located in Secaucus , New Jersey .
11 . ( I ) Soccer is a team sport played between two teams , each of them consists of eleven players , one of whom is a goalkeeper . ( II ) All players must use their feet , head or chest to play the ball . ( III ) Only the goalkeepers are permitted to use their hands , and only within their designated goal area . ( IV ) The aim of the game is to score a goal , which is achieved by kicking or heading the ball into the opposition team ’ s goal . ( V ) If the players insist on breaking of these rules , they may be sent off .
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12 . ( I ) The world−renowned physicist has warned that artificial intelligent ( AI ) has the potential to destroy civilization and could be the worst thing that has ever happened to humanity . ( II ) Seeking at a technology conference , he told attendees that mankind had to find a way to control computers . ( III ) “ Computers can , in theory , emulate human intelligence , and exceed it ”, he said . ( IV ) Or the worst . ( V ) This is not the first time , scientists have talked about the humankind .
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