1 mol/L H2SO4的含义是 A.1L水中含有1mol H2SO4 B.1

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问题:

1 mol/L H2SO4的含义是

A.1L水中含有1mol H2SO4

B.1L溶液中含有1mol H+

C.1L H2SO4溶液中含98g H2SO4

D.将98g H2SO4溶于1L水配成溶液

考点:物质的量
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默写古诗文名句,并写出相应的作家、篇名。(10分)

小题1:蒌蒿满地芦芽短,           。   (苏轼《__     》)

小题2:愿将腰下剑,           。       (李白《塞下曲六首(其一)》)

小题3:           ,单于夜遁逃。       (           《塞下曲》)

小题4:           ,春风不度玉门关。   (王之涣《凉州词》)

小题5:参差荇菜,左右采之。                      。(《诗经·关雎》)

小题6:蒹葭苍苍,           。所谓伊人,           。(《诗经·蒹葭》)

小题7:            ,  志在千里。 (曹操《龟虽寿》)

小题8:           ,愁云惨淡万里凝。   (岑参 《白雪歌送武判官归京》)

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中国的读书人,自古大都以参加科举,考取功名作为人生的奋斗目标,而在中国近代,却有一位出身状元,又毅然弃官从商的著名实业家。他是(  )

A.荣宗敬

B.荣德生

C.张謇

D.周学熙

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客户信用证券账户为证券公司客户信用交易担保证券账户的( )证券账户。

A.一级

B.二级

C.三级

D.初始

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[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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高梁地不能使用什么农药?

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