患者，女性，30岁，劳动中突感剧烈头痛、呕吐，一过性意识不清，醒后颈枕部疼痛，右眼睑

建筑物至道路的地面排水坡度，最好为( )。

A．1%

B．2%

C．1%～3%

D．2%～3%

--How long have you _____________ Teresa?

-- For three years by now. Our wedding anniversary is coming next week.

A．got married to

B．married

C．married with

D．been married to

我国的地形复杂多样，山区面积广大纵横交错的山脉，构成了地形的骨架，高原、平原、盆地和丘陵镶嵌其间。图示描述不正确的是

Do mobile phones cause explosions at petrol stations That question has just been exhaustively answered by Adam Burgess, a researcher at the University of Kent, in England. Oddly, however, Dr Burgess is not a physicist, but a sociologist. For the concern rests not on scientific evidence of any danger, but is instead the result of sociological factors: it is an urban myth, supported and propagated by official sources, but no less a myth for that. Dr Burgess presented his findings this week at the annual conference of the British Sociological Association.

Mobile phones started to become widespread in the late 1980s, when the oil industry was in the middle of a concerted safety drive, Dr Burgess notes. This was, in large part. a response to the Piper Alpha disaster in 1988, when 167 people died in an explosion on an oil platform off the Scottish coast. (41)__________So nobody questioned the precautionary ban on the use of mobile phones at petrol stations. The worry was that an electrical spark might ignite explosive fumes.

(42)__________But it was too late. The myth had taken hold.

One problem, says Dr Burgess, is that the number of petrol-station fires increased in the late 1990s, just as mobile phones were proliferating. Richard Coates, BP’s fire-safety adviser, investigated many of the 243 such fires that occurred around the world between 1993 and 2004. He concluded that most were indeed caused by sparks igniting petrol vapour, but the sparks themselves were the result of static electricity, not electrical equipment. Most drivers will have experienced a mild electric shock when climbing out of their vehicles. It is caused by friction between driver and seat, with the result that both end up electrically charged. When the driver touches the metal frame of the vehicle, the result is sometimes a spark. ( 43 )__________

(44)__________One e-mail contained fictitious examples of such explosions said to have happened in Indonesia and Australia. Another, supposedly sent out by Shell, found its way on to an internal website at Exxon, says Dr Burgess, where it was treated as authoritative by employees. Such memos generally explain static fires quite accurately, but mistakenly attribute them to mobile phones. Official denials, says Dr Burgess, simply inflame the suspicions of conspiracy theorists.

(45)__________Warning signs abound in Britain, America, Canada and Australia. The city of Sao Paulo, in Brazil, introduced a ban last year. And, earlier this month, a member of Connecticut’s senate proposed making the use of mobile phones in petrol stations in that state punishable by a $ 250 fine.

[A] The safety drive did not apply merely to offshore operations: employees at some British oil-company offices are now required to use handrails while walking up and down stairs, for example.

[B] As a result, the company had to pay a huge amount of compensation to the families of the victims and law suits concerning those fires seemed to be endless.

[C] A further complication was the rise of the internet, where hoax memos, many claiming to originate from oil companies, warned of the danger of using mobile phones in petrol stations.

[D] This is particularly noticeable in Britain. The country that led the way in banning mobile phones at petrol stations is also the country that has taken the pest line on the safety of mobile-phone use by children.

[E] Despite the lack of evidence that mobile phones can cause explosions, bans remain in place around the world, though the rules vary widely.

[F] By tile late 1990s, however, phone makers—having conducted their own research— realized that there was no danger of phones causing explosions since they could not generate the required sparks.

[G] This seems to have become more common as plastic car interiors, synthetic garments and rubber-soled shoes have proliferated.

43（）

杭州市人民政府办公厅发布正式通知，确定马年春节燃放烟花爆竹时间缩短至4天。中国人春节燃放烟花爆竹辞旧迎新的传统习俗传承千年一直沿用至今。面对近日空气污染严重的现状，许多市民自觉减少燃放烟花爆竹。同时，针对当前可吸入细颗粒物（PM2．5）为特征污染物危害区域性大气环境，严重损害人民群众身体健康，影响经济社会可持续发展问题，2013年9月12日，国务院发布了《（大气污染防治行动计划》。《计划》提出十条措施，涉及严控污染物排放、推动产业转型升级、加快调整能源结构等。通过广泛宣传教育，增强公民的环保意识；实行严格的监测和预警制度，及时通报空气质量，力争用五年或更长时间使全国空气质量明显改善。

结合材料，运用“传统文化的继承”的相关知识谈谈你对春节燃放烟花爆竹这种传统习俗的认识。