广东全省高三、初三年级学生4月27日返校，了解一下！

Text 3 Olivia Pedersen thought the Nissan Leaf parked outside her favourite lunch spot near Emory University,must be hers.But she could not open the door.Nor could she open the door of the identical Leaf behind it.Cautiously,she tried the third Leaf in line and happily drove away.More than 14,000 electric vehicles are now registered in Georgia;California is Lhe only state with more.But the juicy state incentives for buying ihem are coming under aUack.Residents can claim an income-tax credit for 20%of the cost of leasing or purchasing an electric vehicle,up to$5,000.Combined with a possible federal tax incentive worth$7,500,savvy Georgians are driving all the way to the bank in nearly-free electric cars.Nissan sells more of its Leaf models in Adanta than in any other city,according to Don Francis from Georgia,which promotes the use of cars like these.Such trends motivated Chuck Martin,a representative in Georgia's House,to sponsor a bill to end state incentives for electric vehicles.He argues that the income-tax credit costs too much-about$13.6m in 2013-and that only urban types benefit from these sorts of cars.Mr Martin's bill was voted down in committee in February,but seems to be still breathing.Another House bill,mostly to finance transport projects,would reduce the credits;it is now before the Senate.Fans of electric vehicles say Ceorgia now leads the country in clean transport.Local power companies have helped by offering off-peak prices of l.3 cents per kilowatt hour for charging the cars at night.And the sales tax levied on this power stays in the state,whereas cash spent on petrol largely goes elsewhere,says Jeff Cohen,founder of the Atlanta Electric Vehicle Development Coalition.Cutting the credits alLogether might also harm Georgia in other ways.A study by Keybridge Public Policy Economics,a consultancy,says the stale could lose$252m by 2030 if they disap-pear and people buy gas-guzzlers instead.That is because drivers will spend$714m on petrol to get around（in contrast with the$261m they would have paid in electricity bills）,and will no longer fritter away their savings from the federal electric-vehicle tax crediL in Georgia's shops.But the state's incentives may be safe in the legislature after all;the president of the Senate drives an electric car himself.
Supporters of electric vehicles believe that these cars are______

A.convenient to charge and duty-free
B.powerful and good to environment
C.environmental-friendly and money-saving
D.inexpensive and faster than traditional cars

简述资料整理的步骤。

3阶常系数线性齐次微分方程的通解为y=________

劳动或运动时ATP因消耗而大量减少，此时

A. ADP相应增加，ATP/ADP下降，呼吸随之加快，氧化磷酸化升高
B. ADP相应减少，以维持ATP/ADP恢复正常
C. ADP大量减少，ATP/ADP增高，呼吸随之加快
D.氧化磷酸化速度不变