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【单选题】
If there is one thing scientists have to hear, it is that the game is over. Raised on the belief of an endless voyage of discovery, they recoil (畏缩) from the suggestion that most of the best things have already been located. If they have, today' s scientists can hope to contribute no more than a few grace notes to the symphony of science. A book to be published in Britain this week, The End of Science, argues persuasively that this is the case. Its author, John Horgan, is a senior writer for Scientific American magazine, who has interviewed many of today's leading scientists and science philosophers. The shock of realizing that science might be over came to him, he says, when he was talking to Oxford mathematician and physicist Sir Roger Penrose. The End of Science provoked a wave of denunciation (谴责) in the United States last year. 'The reaction has been one of complete shock and disbelief,' Mr. Horgan says. The real question is whether any remaining unsolved problems, of which there are plenty, lend themselves to universal solutions. If they do not, then the focus of scientific discovery is already narrowing. Since the triumphs of the 1960s--the genetic code, plate tectonics (板块构造税), and the microwave background radiation that went a long way towards proving the Big Bang--genuine scientific revolutions have been scarce. More scientists are now alive, spending more money on research, than ever. Yet most of the great discoveries of the 19th and 20th centuries were made before the appearance of state sponsorship, when the scientific enterprise was a fraction of its present size. Were the scientists who made these discoveries brighter than today's? That seems unlikely. A far more reasonable explanation is that fundamental science has already entered a period of diminished returns. 'Look, don't get me wrong,' says Mr. Horgan. 'There are lots of important things still to study, and applied science and engineering can go on for ever. I hope we get a cure for cancer, and for mental disease, though there are few real signs of progress.' The sentence 'most of the best things have already been located' could mean ______ .
A.
most of the best things have already been changed
B.
most of the best things remain to be changed
C.
there have never been so many best things waiting to be discovered
D.
most secrets of the world have already been discovered
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【判断题】构件的耐火极限:对任一建筑构件按时间一温度标准曲线进行耐火试验,从受到火的作用时起到失去支持能力(如木结构),或完整性破坏(如砖混结构),或失去隔火作用(如钢结构)时为止的这段时间,以小时(h)表示。
A.
正确
B.
错误
【判断题】5S是指整理、整顿、清洁、清扫、素养。
A.
正确
B.
错误
【判断题】5S是指整理、整顿、清扫、清洁、素质。
A.
正确
B.
错误
【单选题】工厂管理中的5S指什么(    )
A.
整理、整顿、清洁、清扫、素养    
B.
整理、整顿、清洁、清空、素养
C.
整理、整顿、清爽、清扫、保养    
D.
整改、整顿、清洁、清扫、素养
【单选题】哪一卷英版《潮汐表》有主要港口的逐时潮高资料 。
A.
第一卷
B.
第二卷
C.
第三卷
【判断题】构件的耐火极限:对任一建筑构件按时间一温度标准曲线进行耐火试验,从受到火的作用时起到失去支持能力(如木结构),或完整性破坏(如砖混结构)9或失去隔火作用(如钢结构)时为止的这段时间,以小时(h)表示。
A.
正确
B.
错误
【简答题】5S指整理、整顿、清扫、清洁和( )。
【判断题】完全竞争市场的均衡将实现有效率的资源配置。( )
A.
正确
B.
错误
【简答题】5S 是指整理、整顿、清扫、清洁、 ( )。
【简答题】对任一建筑构件按时间一温度标准曲线进行耐火试验,从受到火的作用时起,到失去火的支持能力(木结构),或完整性被破坏(砖混结构)或失去隔作用(钢结构)时为此的这段时间。单位为小时称为()。
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