在全口义齿的排牙时，应位于上下颌弓中段处的主力区上的是（） A.第一前磨牙、第二前磨

每逢经期或经后，午后发热，五心烦热，两颧潮红，咽干口燥，其辨证为

A．气血虚弱

B．血热内盛

C．热毒内盛

D．瘀热内阻

E．肝肾阴虚

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 car plane 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 High way 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 air port-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（临界） 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 0rders 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 Transition and Ferrari can take off and land

D．Richard Cersh 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小题5:What's the best title for the passage?

A．Cars With Wings May Be Just Around The Comer

B．Which To Choose: A Ferrari Or A CarPlane?

C．A More Convenient And Cheaper Way To Fly

D．Cars With Wings Can Fly As Fast As Plane

作为能量密集度最高的能源，核能发电在碳减排上的表现可谓出色，极少排放二氧化碳等温室气体，也不产生二氧化硫和氮氧化物等有害气体以及粉尘。但发展核工业需要占据较大的土地空间，并且需要有一定的安全距离。读我国核电工业发展省份分布图，回答1~2题。

1、上海是我国常规能源调入最多的省级行政区之一，但不大力发展核电工业原因是 [ ]

A、土地资源相对短缺

B、进口常规能源相对方便

C、科技进步使得上海对能源的消耗减少

D、风能、潮汐能等丰富

2、N、L两省最具有优势的常规能源分别是[ ]

A、天然气石油

B、水能天然气

C、水能煤炭

D、风能石油

安全阀更换应向设备主管部门申请，并重新办理登记建卡手续，经检验定压合格，方可安排使用。

消极公民