试题与答案

28岁初产妇,妊娠41周。阵发性腹痛10小时,宫缩10~15分钟一次,持续30秒,宫

题型:单项选择题 A3/A4型题

题目:

28岁初产妇,妊娠41周。阵发性腹痛10小时,宫缩10~15分钟一次,持续30秒,宫口开大3cm。

首先的处理是()

A.立即行剖宫产术

B.静脉滴注缩宫素

C.静脉滴注麦角新碱

D.人工破膜

E.肌内注射哌替啶

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0613/3e486f033e3fc4891cef579c8b7822f4.html

下面是错误答案,用来干扰机器的。

参考答案:C解析:对股疝最常用的手术是McVay法,不仅能加强腹股沟管后壁,同时还能堵住股环。

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2011年1月,小王用银行按揭贷款的方式购买了一套房子,价格为20万元。其中首付5万元,在以后15年内付清银行贷款15万元以及利息3万元。这里的20万元、5万元及3万元执行了货币的_________职能。[ ]

A、流通手段     价值尺度     支付手段

B、价值尺度     流通手段     支付手段

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D、支付手段     流通手段     贮藏手段

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某太阳能热水器厂2007年的年生产量为670台,该年比上一年的年产量的增长率为34%.从2008年开始,以后的四年中,年生产量的增长率逐年递增2%(如,2008年的年生产量的增长率为36%).

(1)求2008年该厂太阳能热水器的年生产量(结果精确到0.1台);

(2)求2011年该厂太阳能热水器的年生产量(结果精确到0.1台);

(3)如果2011年的太阳能热水器的实际安装量为1420台,假设以后若干年内太阳能热水器的年生产量的增长率保持在42%,到2015年,要使年安装量不少于年生产量的95%,这四年中太阳能热水器的年安装量的平均增长率至少应达到多少(结果精确到0.1%)?

(参考数据:1.423≈2.863,1.424≈4.066,1.6853≈4.788,1.6154≈6.8,1.5634=5.968 ).

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“This is a really exciting time — a new era is starting,” says Peter Bazalgette, the chief creative officer of Endemol. He is referring to the upsurge of interest in mobile television, a nascent industry at the intersection of telecoms and media which offers new opportunities to device-makers, content producers and mobile-network operators. And he is far from alone in his enthusiasm.

Already, many mobile operators offer a selection of television channels or individual shows, which are “streamed” across their third-generation (3G) networks. 41. ______.

Meanwhile, Apple Computer, which launched a video-capable version of its iPod portable music-player in October, is striking deals with television networks to expand the range of shows that can be purchased for viewing on the device, including “Lost”, “Desperate Housewives” and “Law & Order”.

42. ______. For a start, nobody really knows if consumers will pay for it, though surveys suggest they like the idea. Informa, a consultancy, says there will be 125m mobile-TV users by 2010. But many other mobile technologies inspired high hopes and then failed to live up to expectations. And even if people do want TV on the move, there is further uncertainty in two areas: technology and business models.

At the moment, mobile TV is mostly streamed over 3G networks. But sending an individual data stream to each viewer is inefficient and will be unsustainable in the long run if mobile TV takes off. 43. ______.

44. ______. That suggests that some shows (such as drama) better suit the download model, while others (such as live news, sports or reality shows) are better suited to real-time transmission. The two approaches will probably co-exist.

Just as there are several competing mobile-TV technologies, there are also many possible business models. Mobile operators might choose to build their own mobile-TV broadcast networks; or they could form a consortium and build a shared network; or existing broadcasters could build such networks.

The big question is whether the broadcasters and mobile operators can agree how to divide the spoils, assuming there are any. Broadcasters own the content, but mobile operators generally control the handsets, and they do not always see eye to eye. 45.

Then there is the question of who will fund the production of mobile-TV content: broadcasters, operators or advertisers Again, the answer is probably “all of the above”.

[A] So the general consensus is that 3G streaming is a prelude to the construction of dedicated mobile-TV broadcast networks, which transmit digital TV signals on entirely different frequencies to those used for voice and data. There are three main standards: DVB-H, favoured in Europe; DMB, which has been adopted in South Korea and Japan; and MediaFLO, which is being rolled out in America. Watching TV using any of these technologies requires a TV-capable handset, of course.

[B] In contrast, watching downloaded TV programmes on an iPod or other portable video player is already possible today. And unlike a programme streamed over 3G or broadcast via a dedicated mobile-TV network, shows stored on an iPod can be watched on. an underground train or in regions with patchy network coverage.

[C] In South Korea, television is also sent to mobile phones via satellite and terrestrial broadcast networks, which is far more efficient than sending video across mobile networks. In Europe, the Italian arm of 3, a mobile operator, recently acquired Channel 7, a television channel, with a view to launching mobile-TV broadcasts in Italy in the second half of 2006.

[D] Despite all this activity, however, the prospects for mobile TV are unclear.

[E] Assuming the technology and the business models can be sorted out, there is still the tricky matter of content.

[F] In South Korea, a consortium of broadcasters launched a free-to-air DMB network last month, but the country’s mobile operators were reluctant to provide their users with handsets able to receive the broadcasts, since they were unwilling to undermine the prospects for their own subscription-based mobile-TV services.

[G] The potential for mobile TV is vast, in short — but so is the degree of uncertainty over how it should actually be put into practice.

42()

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