体积是1dm3的正方体浸没在水中,上表面受到水的压力是1N,则下列说法不正确的是

题型:不定项选择

问题:

体积是1dm3的正方体浸没在水中,上表面受到水的压力是1N,则下列说法不正确的是[ ]

A. 物体所受浮力为9.8N  

B. 物体排开水所受重力为9.8N  

C. 物体下表面受到水向上的压力为9.8N  

D. 物体下表面受到水向上的压力为10.8N

考点:物体的浮沉条件及其应用浮力产生的原因浮力及阿基米德原理
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罗马法规定:“用人为的方法变更自然水流,以致他人财产遭受损害的,受害人得诉诸赔偿。”这说明罗马法

A.维护平民的利益

B.维护财产私有

C.维护奴隶制度

D.体现充分的民主性

题型:不定项选择

甘汞电极内的()饱和水溶液面要保持一定的高度,不用时将两个橡皮套套上。

A、氯化银

B、氯化钾

C、氯化钙

D、氯化镁

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Part 3


Questions 19-25


·Read the following newspaper article and answer questions 19-25.
·For questions 19-25, choose the correct answerA, B, C or D.
·Mark your answers on the Answer Sheet.

A Talent Shortage Hits Green Start-ups


On May 1 applications closed for the first intake of a novel kind of executive-education programme. Set up by a bunch of venture-capital firms and other companies in New England, the three-month course will teach its "fellows" about renewable energy. To qualify for a fellowship, applicants must be successful entrepreneurs from other industries, such as IT or health care, and be zealous about profiting from greenery.
"A lack of talent, especially entrepreneurial talent, was one of the biggest bottlenecks to growth we identified in the clean-tech industry," says Peter Rothstein of Flagship Ventures, a venture-capital firm that is one of the programme’s founders. That bottleneck worries investors, who have been pouring cash into everything from solar energy to hybrid electric cars: last year global investment in renewable-energy businesses alone rose by 60%, to $148.4 billion, according to New Energy Finance (NEF), a research firm.
Although the prospect of minting money while helping to save the planet has attracted a stream of executives from other industries to clean-tech start-ups, few of them have much experience of their new field. In a recent global survey of 75 senior executives involved in clean-tech firms conducted by NEF and Heidrick & Struggles, a headhunter, over 90% cited top-level recruitment as a serious concern.
Counting on converts from other industries is risky, because some of the skills needed to run clean-tech companies are very different from those required to, say, launch a website. For one thing, the bosses of renewable-energy start-ups need to understand enough about the science to be able to pluck scientists from obscurity. For another, they need a grasp of project-financing techniques for costly prototype power plants. They also need to be able to deal with capricious regulatory and fiscal regimes. "If you’ve never done anything in the energy space, it can be intimidating,"says Bill Davis, the boss of Ze-gen, a start-up that generates electricity from waste.
Hence the New England bootcamp’s goal of helping 25 aspiring green entrepreneurs a year to make the transition. As well as giving them an overview of the latest scientific research, the course also includes sessions on project finance and government regulations.
Start-ups also face a battle for engineers and scientists. And as small firms take advantage of a growing enthusiasm for greenery in East Asia and the Middle East, they also need more staff with international experience. Tracking down such rare pearls can be a distraction for busy bosses.
Ann Cormack, the head of DI-BP Fuel Crops, a firm based in London that develops crops for biodiesel, reckons talent-spotting takes up about a fifth of her time. She has spent several months hunting for an agronomist, for instance, to no avail.
Like the bosses of many other clean-tech firms, Ms Cormack is using headhunters. They like the clean-tech business because wages, on which their commissions tend to be based, are rising fast. Not so long ago, executives would do meaningful green jobs for menial pay. But in recent years, wages have soared as the industry has grown and attracted big utilities and private-equity firms. Now what matters to the geeks is a different kind of green. "Good people can set their own price tag," says one recruiter, "and they want jam tomorrow, not in five years." It looks like they’ll get it.

Which of the following is a problem mentioned in the passage for senior executives clean-tech firms

A.Poor payment.

B.Low-level recruitment.

C.Inexperience in clean-tech industry.

D.Risk of converting from other industries.

题型:不定项选择

患者女,68岁,身高158cm,体重70kg。因腹痛、发热、巩膜黄染3天,嗜睡、低血压7小时,以急性梗阻性化脓性胆管炎急诊手术。10年前有胆囊切除史。无胸闷、气促等病史,无其他系统病史。查体:体温39℃,BP106/60mmHg、HR125次/分、RR24次/分。巩膜黄染,神志模糊,心肺听诊体检无明显异常发现,腹胀。胸片:两肺纹理增多。ECG示:窦性心动过速,ST-T改变、电轴左偏。

术毕,患者的小便不足50ml,造成肾功能不全的因素主要有()。

A.休克

B.机体脱水

C.液体进入第三间隙

D.不合理地使用α-受体兴奋药

E.内毒素作用

F.肝肾综合征

G.胆红素作用

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火炬的最大排放量是如何计算的?

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