下列有机粉尘中哪种不会引起以支气管痉挛为主的棉尘症() A.丝绸 B.纺纱 C.棉花

题型:单项选择题 A1型题

问题:

下列有机粉尘中哪种不会引起以支气管痉挛为主的棉尘症()

A.丝绸

B.纺纱

C.棉花

D.亚麻

E.软大麻

考点:职业卫生(医学高级)职业卫生职业卫生题库
题型:单项选择题 A1型题

眼睑撕裂伤伴有小的组织缺损时,应()。

A.直接拉拢缝合

B.大针粗线缝合,缝合的深一些,带的组织多些

C.褥式缝合加间断缝合,以充分减张

D.尽量将组织复位,组织缺损处进行游离植皮以关闭创面

E.组织缺损应当转移邻近皮瓣

题型:单项选择题 A1型题

有关CK-MB,错误的是()。

A.主要存在于心肌组织中

B.对AMI诊断的灵敏度高于总CK

C.高峰时间与预后有一定关系

D.高峰出现早者预后差

E.其增高也可见于肌肉疾病及手术

题型:单项选择题 A1型题

In November the European Parliament’s culture and education committee is due to move forward on its proposed "audiovisual media services" directive, before sending it to the full parliament in December. The new rules update and relax the "Television Without Frontiers" directive of 1989, which opened Europe’s national markets. But critics complain that they also seek to extend fusty regulations from the era of broadcast television to today’s very different technologies. Rules on advertising, the protection of children and so on could potentially also apply to all kinds of video streams, including video blogs, online games and mobile-video services.

This could have a chilling effect on innovation and risks stifling emerging technologies with rules designed for another age, says Chris Marsden of RAND Europe, a think-tank that has analysed the potential impact of the proposed rules for Ofcom, Britain’s media and telecoms regulator. "Regulators have to be thoughtful. They cannot predict the future of television "or the internet—no one can," says Niklas Zennstr. m, a co-founder of Skype, who is now setting up an internet television firm.

The proposed rules may be unrealistic as well as onerous. The idea that websites can be regulated like broadcasters, which are required to keep strict records of what they show in order to help watchdogs investigate complaints, is untenable. Firms could simply relocate outside the European Union to escape the new rules. Last week Ruth Hieronymi, a member of parliament, said she would introduce wording that might help to overcome some of the objections.

Behind the debate is the question of how best to balance competition and protection. Traditional broadcasters worry that they will be shackled by regulations while brisk start-ups can do as they please—so they like the idea of extending regulation to their new rivals. But even if the rules are approved as they stand, they will not come into force until 2010. Such a long, slow process seems incongruous given the pace of technological change.

The word "onerous" (Line 1, Paragraph 4) most probably means ().

A.deceptive

B.burdensome

C.stringent

D.outrageous

题型:单项选择题 A1型题

用电流表测量电流时,不慎将电流表与负载并联,会产生何后果?

题型:单项选择题 A1型题

某银行某笔贷款,额度为1000元,在未来25年里的年偿付额为126元,问其到期收益率是多少?

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