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起重机械每两年至少应做一次全面技术检查。
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Questions 17—20 are based on the following conversation. How do thermographic pictures indicate the temperatures of various parts of the body
Text 2 A very important world problem — in fact, I think it may be the most important of all the great world problems which face us at the present time — is the rapidly increasing pressure of population on the land. The population of the world today is about 4,000,000,000. That is an enormous number, yet it is known quite accurately, because there are very few parts of the world which have not carried out a modem census. The important thing is not so much the actual population of twenty million — about six months’ increase in world population. Take Australia for example, there are ten million people in Australia. So it takes the world about three months to add to itself a population which peoples that vast country. Let us take our own crowded country, England and Wales — forty-five to fifty million people. This is just about a year’s supply. By this time tomorrow, and every day, there will be added to the earth about 120,000 extra people — just about the population of the city of York. I am not talking about birth rate. This is net increase. To give you some idea of birth rate, look at the second hand of your watch. Every second, three babies are born somewhere in the world. Another baby! Another baby! You cannot speak quickly enough to keep up with the birth rate. This enormous increase of population will create immense problems. By AD2000, unless something terrible happens, there will be as many as 7,000,000,000 people on the surface of the Earth! So this is a problem which you are going to see in your lifetime. England and Wales ______.
Read the following texts’ and answer the questions which accompany them by choosing A, B, C or D. Mark your answers on ANSWER SHEET 1.Part ARead the following text and answer the questions which appcompany them by choosing A, B, C or D. Mark you answers on ANSWER SHEET 1. Text 1 It was a cold, rainy and wholly miserable afternoon in Washington, and a hot muggy night in Miami. It was Sunday, and three games were played in the two cities. The people playing them and the people watching them tell us much about the ever-changing ethnic structure of the United States. American males are more addicted to sports than females are, but not by a huge margin. Females are more addicted to the theatre and concert halls than males are, but not by a huge margin. In our electronic age, addicts and experts alike can be couch potatoes, enjoying their entertainments from the comfort of home. Tree fans get off their butts and go. The three games in the two cities on that miserable Sunday afternoon had respective attendances of 75,061,67,204 and 57,318. The biggest crowd watched professional football, in which the Washington Redskins were beaten by the Blatimore Ravens. The crowds sat in the cold and rain, and most of them endured the weather to the bitter end because the outcome of the game was in doubt. Professional football in the United States is almost wholly played by nativeborn American citizens, mostly very large and very strong, many of them are black. It is a game of physical strength, Linemen routinely weigh more than 300 pounds. Players are valued for their weight and muscles, for how fast they can run and how hard they can hit each other. Football draws the biggest crowds, but the teams play only once a week, because they get so battered. The 67,204 fans were in Miami for the final game of the baseball World Series. Baseball was once America’s favourite game, but has lost that claim to basketball. The 1997 World Series was much reviled in the news media of the largest cities, mostly because they had been shut out of it. NBC, which broadcast the Series, wished loudly that it hadn’t. Despite all the bad press, every game was sold out and double the tickets could have been sold had the stadiums accommodated more people. Baseball is a game that requires strength, but not hugeness. Agility, quickness, perfect vision and quick reaction are more important than pure strength. Baseball was once a purely American game, but has spread around much of the New World. In that Sunday’s finale, the final hit of the extra inning game was delivered by a native of Columbia. The Most Valuable Player in the game was a native of Cuba. The rosters of both teams were awash with Hispanic names, as is Miami, which now claims the World Championship is a game that may be losing popularity in America, but has gained it in much of the rest of the world. Baseball in America has taken on a strong Hispanic flavor, with a dash of Japanese added for seasoning. In soccer, the ethnic tide has been the reverse of baseball’s. Until recently, professional soccer in the United States had largely been an import, played by south Americans and Europeans. Now, American citizens in large numbers are finally taking up the most popular game in the world. Basketball, an American invention increasingly played around the world, these days draws large crowds back home. Likewise, hockey, a game largely imported to the United States from neighbouring Canada. Lacrosse, a version of which was played by Native Americans before the Europeans arrived, is also gaining a keen national following. Sports of all kinds are winning support from American armchair enthusiasts from a variety of ethnic backgrounds. It can be inferred that the football game was played in ______ on that Sunday afternoon.
某女，65岁，患冠心病已5年，3h前胸骨后绞痛发作，在家口含硝酸甘油未见缓解，并有呕吐，出冷汗，急诊室心电图检查示窦性心律及急性前壁心肌梗塞 此病人入院24h内最常出现
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