题目

1.5g火箭燃料二甲基肼（CH3－NH－NH－CH3）完全燃烧，放出50 kJ热量，则二甲基肼的燃烧热为（             ） A．1000kJ/mol                    C．2000kJ/mol B．1500kJ/mol                            D．3000kJ/mol 答案：C    阅读理解。      With the Tesla  Roadster and  other  plugin ( 插入式) electric vehicles hitting the road,demand is growing for accessible refueling points to recharge them．Carbon Day Automotive,a Chicagobased company,has now demonstrated a solarpowered recharging point,known as the Solar PlugIn Station,which lets motorists easily charge their cars using electricity that has been produced without any environmental damage．      The Solar PlugIn Station has gone on show in Chicago as part of the city's bid to host the2016 Olympic Games．According to Carbon Day Automotive,the Solar PlugIn Station on show in Chicago is part of the vital infrastructure(基础设施) required for electric vehicles in Chicago and was the focus of a recent visit by the International Olympic Committee．      These solarpowered electricity points will be used daily to fuel the city's electric vehicles with power from the sun．By producing the electricity from pollutionfree solar cell,the CO2 emissions are reduced to zero．      "Solar energy and electric vehicles are a partnership that is one more step to reducing our dependence on foreign oil," says Richard Lowenthal,CEO of Coulomb Technologies．CoulombTechnologies recently developed the components (部件) required for individual recharging stations,marketed as ChargePoint Networked Charging Stations．Carbon Day Automotive is the Midwestdistributor for the ChargePoint stations．     The Solar PlugIn Station consists of giant solar panels (电池板) that shade the tiny ChargePoint Networked Charging Station．The solar panel is connected to an underground battery pack,ready for everyday refueling．     "Without these stations it would be like driving around in a traditional car without the availability of gas stations," says Scott Emalfarb,CEO at Carbon Day．"The day of true plugin electric vehicles will be here sooner than most people realize and the world needs to be ready to accommodate them．"1．The Solar PlugIn Station is used as part of the bid to host the Olympics mainly because ________．A．it's environmentally friendlyB．it makes up for the lack of electricityC．it's a new idea and attracts people's attentionD．it brings convenience to electric vehicle users2．We can learn from the passage that ________．A．to recharge the electric vehicles takes a long timeB．the Solar PlugIn Station will come into use in 2016C．the Solar PlugIn Station has gone on show internationallyD．Chicago is promoting the use of electric vehicles3．The passage implies that when the Solar PlugIn Station becomes popular,________．A．more visitors will come to ChicagoB．more space for electric vehicles will be neededC．the citizens of Chicago will be able to go to work fasterD．the cost of electric vehicles will be lower than traditional cars4．What would be the best title for the passage?A．Chicago Will Soon Be Full of Electric VehiclesB．Chicago Calls on People to Buy Electric VehiclesC．Chicago Fights for Its Bid to Host the 2016 OlympicsD．Chicago Shows Its Solarpowered Recharging Stations