[A] The take-up of EVs—which run entirely

题型:填空题

问题:

[A] The take-up of EVs—which run entirely on electricity stored in rechargeable batteries—is seen as central to the plan to cut the transport sector’s carbon emissions, both here and across the European Union. It is predicted that we will be running a total of 800,000 EVs in Britain by 2020, and as a result the race to install a recharging infrastructure is well under way. Transport for London (TfL) recently announced it will have 1,300 EV charging points in London by 2013—more than the current number of petrol stations in the capital. The London mayor, Boris Johnson, is on the record as saying he wants to make the city the electric car capital of Europe.

[B] However, the power companies, sensing a good business opportunity, are now vying to sign up electric car-owning households with the offer of cheaper and faster off-peak home charging that will cut the time it takes to recharge the vehicle—freeing it to make more journeys, and making them more attractive to buyers. So far, EDF, British Gas, and most recently npower have said they will be targeting EV users with special home services as well as cheaper tariffs for recharging vehicles.

[C] What would make you consider buying an electric car They offer a green way to get around, with the chance to bypass petrol stations. And they are exempt from road tax and London’s congestion charge. Energy company npower (英国电力公司) this week revealed that 33% of UK drivers would think about buying an electric vehicle (EV) in the next five years, rising to 41% when the benefits were explained.

[D] But despite the introduction in January of a generous £ 5,000 government purchase grant to encourage more people to take the plunge, it’s fair to say that sales of electrically powered cars in the UK are yet to really take off. Just over 500 people took the government up on its offer in the first quarter of this year. Their high prices—typically about £ 25,000 after the grant—plus a lack of models by major carmakers and a shortage of charging points, have held back sales. However, the last two points are about to change.

[E] Speaking in Berlin last week, npower’s head of e-mobility, Phil Evans, told Guardian Money that the company sees EVs as a major opportunity, and as a result it is working on building an "upgradable" charging infrastructure that will develop as the cars’ power systems become more sophisticated.

[F] Potential buyers now have a choice of seven models in the UK, with 13 more on the way, while EDF Energy (英国电网), British Gas and npower have recently announced plans to start offering to install faster and cheaper charging points in customers’ homes, in a move they hope will help kick-start sales. The companies are banking on the fact that buyers of the latest, more consumer-friendly electric cars, such as the Nissan Leaf, are going to boost demand for electricity.

[G] Plans are also under way to increase the number of charging points at a variety of locations across the UK—and soon it will be possible for homeowners to upgrade their garages to allow faster, safer home charging. Until recently, most owners of plug-in-to-recharge electric cars have had to rely on the traditional three-point household plug, and wait about eight hours to fully recharge their vehicle at home.

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考点:普通考研考研数学(三)考研数学三
题型:填空题

在一密闭烧瓶中充入NO2,在25℃时建立下列平衡:2NO2(g)N2O4(g)△H<0,若把烧瓶置于100℃的沸水中,不发生改变的是[ ]

A.颜色

B.平均摩尔质量

C.压强

D.密度

题型:填空题

下丘脑垂体甲状腺轴对垂体分泌催乳素的影响是()

A.TSH抑制催乳素分泌

B.甲状腺激素抑制催乳素分泌

C.促甲状腺激素释放激素抑制催乳素分泌

D.TSH刺激催乳素分泌

E.促甲状腺激素释放激素刺激催乳素分泌

题型:填空题

关于图书美术设计的手段,下列表述准确的有()。

A.是以一定的物质材料和技术手段为基础的艺术创作

B.其手段主要有艺术的手段、技术的手段和材料与印刷工艺的手段

C.艺术的手段指运用形象、图案、色彩、文字等要素,以写真或写意的手法,表达图书主题内涵的方法

D.技术的手段是运用现代化的手段,使设计对象产生一种超空间、超想象、超常规的特殊艺术效果

E.材料的手段中的“材料”主要是指织物

题型:填空题

图所示,开关S由触点a拨到触点b时,通电螺线管A端磁极极性由_________极变为_________极.

题型:填空题

同样质量的瓦斯含有爆炸燃烧热量是炸药的()倍。

A、1

B、5

C、10

D、15

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