下列关于设备租赁的说法，正确的是（）。 A.设备租金可在所得税前扣除 B.租赁契约可

依次填入下列各句横线处的词语，最恰当的一组是

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①虽然地铁九号线的施工难度很大，但现代化的机械设备和施工技术提高了       ，保证了施工计划的按时完成。 ②为确保两会召开期间市区道路交通顺畅，按照公安部统一       , 交管部门对进京车辆采取临时交通管制措施。 ③由中国商业联合会起草的《珠宝饰品经营服务规范》，日前经商务部       通过，将于2012年的6月1日起实施。 A．功效 B．工效 C．功效 D．工效 布置   布置 部署 部署 审定 审订 审定 审订

转基因抗病香蕉的培育过程如图所示，质粒上有PstⅠ、SmaⅠ、EcoRⅠ、ApaⅠ等四种限制酶切割位点。请回答：

(1)构建含抗病基因的表达载体A时，应选用限制酶_______，对________进行切割。

(2)培养基中的卡那霉素会抑制香蕉愈伤组织细胞的生长，欲利用该培养基筛选已导入抗病基因的香蕉细胞，应使基因表达载体A中含有________，作为标记基因。

(3)香蕉组织细胞具有_________，因此，可以利用组织培养技术将导入抗病基因的香蕉组织细胞培育成植株。图中①、②依次表示组织培养过程中香蕉组织细胞的__________。

In the 5,000 years since Ancient Egyptians experimented with scented plants, aromatherapy has been credited with a plethora of powers. Today it is a multimillion-pound industry, recognized as effective by three quarters of the adult population and hailed as a cure for problems from nicotine addiction to baldness.
But aromatherapy could be little more than an illusion, psychologists argue. Neil Martin, from Middlesex University, a specialist in the psychology of olfaction, has a less polite word for it. "bunkum". Dr. Martin enlisted 60 volunteers and subjected them all to experimentally induced pain by getting them to plunge their forearms into ice-cold water for 15 minutes. A third of participants were exposed to a pleasant lemon odour, a third to the odour of machine oil and the rest were in an odourless room. They were asked to rate the amount of pain they felt on a scale of 0 (painless) to 11 (unbearable) every five minutes.
At the first time of asking, those exposed to an odour reported significantly higher pain levels, with a score of 8 for both groups, than the control group, which had an average of 6. After 15 minutes the pain level of the no-odour group had fallen to 5. Among the lemon-odour group it had fallen to 6, while for the machine oil group it remained at 8.
Dr. Martin said his findings showed not merely that aromatherapy had no effect but that it could be positively harmful. "Aromatherapy appears to be counter-productive. Most claims by aroma therapists have no basis in science," he said. "The effect it has on real hard illnesses are non-existent. It is a waste of time and money. Exposure to both odours increased the pain. It could be that the odours had a stimulant effect and drew attention to the pain because it made the experience of being in the room with the bucket of water more noticeable. "
He accepted, however, that aromatherapy may have a powerful placebo effect. "People going to aromatherapy have a mental problem or a physical disorder that they want to have treated and the belief that they want to get better can overcome the inefficacy of the treatment," he said. He added that previous research into aromatherapy had been largely inconclusive.
Dr. Martin’s research, presented at the British Psychological Society annual conference in Cardiff, comes after the release of a study last week claiming that spinal manipulation, another popular form of complementary medicine, did not work and could make matters worse.
Both papers are highly contentious. The British public now spends more than ￡24 million a year on over-the-counter aromatherapy products such as essential oils, and 75 per cent of the population believe that the treatment works.
Carole Preen, the secretary of the Aromatherapy Consortium, disputed Dr. Martin’s findings. "This research didn’t involve aromatherapy because they simply used a certain smell to try and gain an effect. Aromatherapy is not a cure and no one would ever make that claim, but there is a wealth of scientific research published in journals to show that it can be beneficial. It can lift mood, alleviate pain and helps very many people," she said.

WHAT’S IN A SMELL

·The British public spends more than 24 million a year on over-the-counter aromatherapy products such as essential oils
·75 per cent of the population believes that the treatment works
·Aromatherapy had been hailed as a cure for problems ranging from nicotine addiction to baldness
·The Prince of Wales is a fan. Peterborough prison last year hired two holistic therapists for its inmates
·There are 7,000 therapists registered with the Aromatherapy Organisations Council
·Hammersmith Hospital, in West London, offers aromatherapy massages for NHS cancer patients

What is aromatherapy

某市政府为克服各部门行政处罚自由裁量权幅度过大带来的问题，将行政处罚权依法细化，将细化后的标准向社会公布，接受市民监督。这项措施[ ]

A．保障了人民群众的表达权，扩大了人民当家作主的权利

B．限制了政府的行政决策权，保障了人民群众的参与权

C．增强了政府工作的透明度，保障了人民群众的知情权

D．增加了政府工作的公开度，扩大了人民群众的监督权

秦始皇专制主义中央集权制度的核心是（）

A.规定皇权至高无上

B.中央设三公九卿

C.地方推行郡县制度

D.颁布秦律，严刑峻法