安置残疾人的单位可以享受税收优惠政策，这里“单位”指的是（）。

[单选题]冠心病Ⅲ期康复最常用的运动方式不包括（）

[单选题]女孩，12岁，半小时前从自行车后座上摔下右肘撑地，后肘上肿痛。医师检查发现下列情况即诊断为肱骨髁上骨折。其主要依据是（）

[问答题]Passage 1　　Britain is still home to some of the world’s best scientists—but when it comes to giving them the money to turn their ideas into world-beating companies we are third-rate. True?　　“That’s gulf,” is the impatient response of Anne Glover, a leading venture capitalist.　　She believes this is the best time since the short-lived dot corn bubble for anyone looking to get their idea funded: “It’s never been better, except during the boom for a short nine-month period.”　　Not from the perspective of Noah Freedman, who has tried to get venture capital firms interested in Ionscope, a firm using world-leading science from Imperial College and Cambridge University. “I don’t think the situation has improved in the UK over the last decade,” he says.　　But Anne Glover, whose venture capital firm Amadeus Capital has backed businesses such as lastminute, corn, Cambridge Silicon Radio and Plastic Logic, points to the figures.　　Last year ￡lbn of venture capital money was invested in young firms in the UK—that’s more than a third of all the money invested across Europe.　　“We get beaten up all the time,” says Ms Glover, “but which other sector has as big a share of the European market?”　　And just as in other industries there are fashions in venture capital. What’s hot right now? Mobile technology, semi-conductors, and consumer internet firms, according to Amadeus—rather similar to what was getting funded during the last booming 2000.　　That ended with a bust which sawn many start-ups disappear and “was followed by several years in which venture capitalists seemed to have gone into hiding. But Anne Glover says they’ve come through the experience stronger.　　“The ones who have survived the boom and bust are experienced and well-funded and have similar global aspirations to the best entrepreneurs.”　　But Noah Freedman, an entrepreneur who was previously involved in Brainspark, an incubator for technology start-ups, says there is still a funding gap.　　Ionscope, which makes very high resolution microscopes, was not able to raise venture capital until it had sold its first products. “The bottom line is that in the UK, it may be easy to get venture capital money to fund growth of an established concept or business, but it is exceptionally difficult to get seed and start-up money for real innovation.”　　Anne Glover says the real problem is a lack of ambition, from both investors and entrepreneurs.　　“We maybe spread our money too thinly rather than concentrate on the best ideas. When we’ve got a world-leading company that’s the point where we need to finance it properly.”　　She says she spends more time trying to raise the ambitions of start-up firms rather than lower them.　　So what’s the lesson from those who have made it? Alex van Someren is one entrepreneur who did raise the money to create a successful global business.　　His Cambridge-based internet security company Ncipher raised venture capital money between 1996 and 2000, and then floated just in the nick of time before the stock market crash.　　He believes we are making progress: “Both investors and the people they invest in have become much more sophisticated.” He says the problem is not a lack of money or ideas. “There is plenty of both—but ideas are not the same as investable businesses.”　　But he says young companies are now more likely to turn to business angels—often people who have built their own firms—rather than venture capitalists: “Angels have done it themselves, so they bring more added value—and they’re willing to invest in businesses too small for venture funds to look at.”　　What Britain doesn’t have—despite attempts to brand Cambridge as Silicon Fen—is one area that can compete with Silicon Valley as a place which produces innovative businesses and the investors to fund them.　　But Anne Glover says we shouldn’t get hung up on the comparison: “You would find the same inferiority complex in Indiana or Wisconsin—Silicon Valley is unique. It’s difficult to raise venture capital anywhere in the world. Entrepreneurship is hard and don’t expect it to be easy.”　　The good news is that, when it comes to innovation, Britain has a growing number of entrepreneurs who have been there and done that.　　Many are now starting new firms or investing in other start-ups. Their only fear is that the latest boom in technology investment could melt away like the last one.　　1. Briefly describe the last boom.　　2. What advantages have the companies which survived last boom got?　　3. What is the difference on capital choice for young companies between the last boom and this latest one? Why?

[单选题]质量为m的小物块在匀速转动的圆桌上，与转轴的距离为r，如图4-2-6所示。设物块与圆桌之间的摩擦系数为μ，为使物块与桌面之间不产生相对滑动，则物块的最大速度为（　　）。[2018年真题]图4-2-6

[判断题]车站道岔的轨距、轨向调整（轨道平面调整），通过更换调高垫板来实现。

[单选题]传递函数G（s）的零点是（）

[单选题]颗粒物大小通常用粒径表示，大气中颗粒物的粒径通常表示为（）。

[单选题]非金属风管法兰其螺栓孔的间距不得大于（）mm，矩形风管的四角处，应设有螺栓孔。

[单选题]急性肾衰竭未行透析患者蛋白质摄入量是（）

[单选题]在知识大爆炸的今天，不少人已习惯于浅阅读，这虽在所难免，其______也是明显的。浅阅读虽能够收获一些印象式的谈资，但______之中透露出的是浮躁心气，很难______为提升阅读者主体素质的扎实“文化准备”。依次填入划横线部分最恰当的一项是（　　）。