人体最基本、最重要的气，也是人体生命活动的原动力的是（）。

润滑剂用量不足可导致

关于聚乙烯燃气管道连接的说法正确的是（）。

【真题改编】根据《企业安全生产费用提取和使用管理办法》（财资【2022】136号的规定。下列各类企业具体安全生产费用的做法，正确的是（ ）。 

Passage1

Do who choose to go on exotic，far-flung holidays deserve free health advice before they travel？And even if they pay，who ensures that they get good，up-to-date information？Who，for that matter，should collect that information in the first place？For a variety of reasons，travel medicine in Britain is a responsibility nobody wants.As a result，many travellers go abroad prepared to avoid serious disease.

Why is travel medicine so unloved？Partly there's an identity problem. Because it takes an interest in anything that impinges on the health of travelers ，this emerging medical specialism invariably cuts across the traditional disciplines. It delves into everything from seasickness，jet lag and the hazards of camels to malaria and plague. But travel medicine has a more serious obstacle to overcome. Travel clinics are meant to tell people how to avoid ending up dead or in a hospital when they come home，but it is notoriously difficult to get anybody pay out money for keeping people healthy.

Travel medicine has also been colonized by commercial interests; the vast majority of travel clinics in Britain are run by airlines or travel companies. And while travel concerns are happy to sell profitable injections, they may be less keen to spread bad news about travellers' diarrhea in Turkey, or to take time to spell out preventive measures travellers could take."The NHS finds it difficult to define travellers' health,"says Ron Behrens,"the only NHS consultant in travel and director of the travel clinic of the Hospital for Tropical Diseases in London."Should it come within the NHS or should it be paid for?"It's Gary area, and opinion is spilt. No one seems to have any responsibility for defining its role,"he says.

To compound its low status in the medical hierarchy, travel medicine has to rely on statistics that are patchy at best. In most cases we just don't know how many Britons contract diseases when abroad. And even if a disease linked to travel there is rarely any information about where those afflicted went, what they are, how they behaved, or which vaccinations they had. This shortage of hard facts and figures makes it difficult to give detailed advice to people, information that might even save their lives.

A recent leader in British Medical Journal argued."Travel medicine will emerge as credible disciplines only if the risks encountered by travellers and the relative benefits of public health interventions are well defined in terms of their relative occurrence, distribution and control."Exactly how much money is wasted by poor travel advice. The real figure is anybody's guess, but it could easily run into millions. Behrens gives one example. Britain spends more than £ 1 million each year just on cholera vaccines that often don't work and so give people a false sense of security."Information on the prevention and treatment of all forms of diarrhea would be a better priority," he says.

The phrase "delves into" in Paragraph 2 can be replaced by_______.

男，27岁。间断出现腰部痛3个月，稍事活动后疼痛可缓解；查体骶骼关节压痛（+），4字试验（+），血沉、C反应蛋白、免疫球蛋白均升高。治疗方面下列错误的是（    ）。

小儿需要与传染病鉴别时 ，应特别注意询问

第三、第四代黏结剂对牙本质的固位作用产生于（    ）

影响药物排泄的中西药联用药组是（  ）

下列关于专项施工方案编制和审查程序的说法，错误的是（   ）。

影响根管治疗预后较重要的因素是（  ）