现代医学所称的天疱疮属于哪类皮肤病（） A.感染性皮肤病 B.变态反应性皮肤病 C.

(2013·湛江一中期末测试)If cars had wings，they could fly and that just might happen，beginning in 2012.The company Terrafugia，based in Woburn，Massachusetts，says it plans to deliver its car­plane，the Transition，to customers by the end of 2012.

“It's the next ‘wow’ vehicle，” said Terrafugia，vice president Richard Gersh.“Anybody can buy a Ferrari，but as we say，Ferraris don't fly.”

The car­plane has wings that unfold for flying—a process the company says takes one minute—and fold back up for driving.A runway is still required to take off and land.

The Transition is being marketed more as a plane that drives than a car that flies，although it is both.The company has been working with FAA to meet aircraft regulations，and with the National Highway Traffic Safety Administration to meet vehicle safety regulations.

The company is aiming to sell the Transition to private pilots as a more convenient and cheaper way to fly.They say it saves you the trouble of trying to find another mode of transportation to get to and from airports：you drive the car to the airport and then you're good to go.When you land，you fold up the wings and hit the road.There are no expensive parking fees because you don't have to store it at an airport—you park it in the garage at home.

The car­plane is designed to fly primarily under 10,000 feet.It has a maximum take­off weight of 1,430 pounds，including fuel and passengers.Terrafugia says the Transition reduces the potential for an accident by allowing pilots to drive under bad weather instead of flying into marginal(边缘的) conditions.

The Transition's price tag：$194,000.But there may be additional charges for options like a radio，transponder or GPS.Another option is a full­plane parachute.

“If you get into a very awful situation，it is the necessary safety option，”Gersh said.

So far，the company has more than 70 orders with deposits.“We're working very closely with them，but there are still some remaining steps，” Brown said.

小题1:We can learn from the first paragraph that ________.

A．car­planes will be popular in 2012

B．people might drive a car­plane in 2012

C．both the Transition and the Ferrari can take off and land

D．Richard Gersh is the vice president of Massachusetts小题2:It takes the car­plane one minute to ________.

A．fold and unfold its wings

B．unfold wings for flying

C．land in the airport

D．meet flying safety regulations小题3:According to the passage，which of the following is NOT true?

A．The car­plane needs a runway to take off and land.

B．To meet aircraft regulations，the company has been working with FAA.

C．The car­plane may fly as high as normal planes.

D．People can park the car­plane in the garage at their home.

小题4:The underlined word “it” in the last but one paragraph refers to ________.

A．the radio

B．the transponder

C．the GPS

D．the full­plane parachute

公路、公路桥梁、公路隧道限载、限高、限宽、限长标准调整的，公路管理机构、公路经营企业应当及时变更（）；需要绕行的，还应当标明绕行路线。

A、限载

B、限高

C、限宽

D、限长标志

管道安装的标高单位为（）。

A.mm

B.cm

C.m

D.以上三者都行

唐代绘画理论家张彦远在《历代名画记》中说：“若复不为无益之事，则安能悦有涯之生？”意思是不干些“无聊的事”，如何能有趣地度过有生之年？如今，一大群创客正将“无聊之事”进行到底。“指纹对于每一个人来说都是独一无二的，如果用声音来表达每一个人指纹的独特性，应该是一件很有趣的事”，于是“指纹唱片机”便在杭州某大学生手中问世了。这些创客的存在（）。

①能够丰富市场供给，满足群众需求

②有利于为经济发展培育新的增长点

③证明科技创新已不再是政府的专利

④说明公司制是企业主要组织形式之一

A、①②

B、③④

C、①③

D、②④

在竞技体育比赛中，选手们往往为了追求成绩的0.01秒提高，常常表现出忘我的拼搏、永不放弃的精神，这反映出的竞技体育社会价值是（）

A.激励人类的自我奋斗精神

B.促进经济和社会的迅速发展

C.满足社会生活的观赏需求

D.排解社会成员不良情绪