原子弹和核电站都是利用链式反应释放的能量,两者的本质区别是:核电站发生的链式反应

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问题:

原子弹和核电站都是利用链式反应释放的能量,两者的本质区别是:核电站发生的链式反应是      (可控/不可控)的;太阳能是       (一次/二次)能源,它是内部氢原子核发生     (裂变/聚变)释放出的核能。

考点:核能,裂变,聚变
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体现“通因通用”之法治疗泄泻的方剂是()

A.葛根芩连汤

B.枳实导滞丸

C.附子理中丸

D.参苓白术散

E.藿香正气散

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下列各句横线上填入的一组词语最为恰当的一项是( )

①我叫阿毛,没有应,出去一看,只见豆撒得一地,没有我们的阿毛了。他是不到别家去玩的;各处去一问,__没有。

②这故事倒颇有效,男人听到这里,往往敛起笑容,没趣的走开去;女人们却不独__了她似的,脸上立刻改了鄙薄的神气,还要陪出许多眼泪来。

③黛玉虽不识,也曾听见母亲说过,大舅贾赦之子贾琏,娶的就是二舅母王氏之内侄女,自幼假充男儿__的,学名王熙凤。

A.果然宽恕教养

B.果然饶恕教育

C.竟然宽恕教育

D.竟然饶恕教养

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符合卢梭式的自由观念的是:()

A、自由就是为所欲为

B、自由就是不受强制

C、自然动物是自由的

D、自由在于服从自身的理性

题型:填空题

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 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 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, 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, that 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.\

There have not been many genuine scientific revolutions in the past few decades because()

A. there have been decreased returns in the research of fundamental science

B. there are too many important things for scientists to study

C. applied science and engineering take up too much time and energy

D. today’s scientists are not as intelligent as those in the past

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ME60主要有哪些单板类型,其功能是什么?(至少列出4种)

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