【判断题】【消耗次数:1】
纯电动汽车比燃油汽车综合成本更低
正确
错误
参考答案:
复制
纠错
相关题目
【单选题】 电动汽车的能量来源是( )。
①  发动机
②  起动机
③  发电机
④  蓄电池
【单选题】 以下哪个不是电动汽车的优点( )。
①  无污染、噪声小
②  结构简单,使用维修方便
③  可在夜间利用电网的廉价“谷电”
④  使用成本高
【单选题】 蓄电池的( )影响电动汽车的电池布置空间。
①  体积比能量
②  质量比能量
③  体积比功率
④  质量比功率
【判断题】 纯电动汽车是通过电机的正转来实现整车加速、减速及电机的反转来实现倒车
①  正确
②  错误
【单选题】 对纯电动新能源汽车而言,蓄电池的体积比能量影响以下哪个因素(  )。
①  整车质量
②  续驶里程
③  最大速度
④  电池布置
【单选题】 我国规定的汽车燃油经济性的综合评价指标为( )。
①  等速百公里燃油消耗量
②  加速油耗
③  循环工况百公里油耗
④  混合油耗
【判断题】 比功率综合反映汽车的动力性
①  正确
②  错误
【单选题】 ( )是评价电池及电池组是否满足电动汽车加速和爬坡能力的重要指标。
①  能量
②  比能量
③  功率
④  比功率
【单选题】 驱动电机系统是纯电动汽车的核心部件之一,一般是由驱动电机和()两部分组成
①  高压线束
②  电机控制器
③  高压控制盒
④  DC/DC
【单选题】 关于汽车比功率,下述说法错误的是_________。
①  汽车比功率是单位汽车总质量具有的发动机功率
②  根据汽车比功率可进行发动机功率的选择
③  车速对比功率的选择有较大影响
④  货车的比功率比轿车的要大
随机题目
【单选题】 下列因素中,哪个不属于企业的外部环境因素?
①  人口
②  营销组合
③  人均国民收入
④  都不属于
【单选题】 下述四个学院,哪一个是按顾客划分的?
①  外国语学院
②  生命科学学院
③  高等继续教育学院
④  法政学院
【单选题】 南方某厂订立有严格的上、下班制度并一直遵照执行。一天深夜突降大雪,给交通带来极大不便,次日早晨便有许多同志上班迟到了,厂长决定对此日的迟到者免于 惩罚。对此,企业内部职工议论纷纷。在下列议论中,你认为哪种说法最有道理?
①  厂长滥用职权。
②  厂长执行管理制度应征询大部分职工的意见。
③  治厂制度又不是厂长一人订的,厂长无权随便变动。
④  规章制度应有一定的灵活性,特殊情况可以特殊处理。
【单选题】 若要打开“颜色”对话框,则通用对话框的Action属性值应为?
①  1
②  2
③  3
④  4
【单选题】 -Id like to buy that coat. -Im sorry. ___.
①  it sold
②  its selling
③  Its been sold
④  it had been sold
【单选题】 English ____ in Canada.
①  speaks
②  are spoken
③  is speaking
④  is spoken
【单选题】 The key ___ on the table when I leave.
①  was left
②  will be left
③  is left
④  has been left
【单选题】 阅读理解:阅读下列短文,回答文后问题,选择最佳答案Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important.In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily;but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago,a rich and powerful country cut down its trees to build warships, with which to gain itself an empire.It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒).5. Which title best fits the passage?
①  A. Trees and Man
②  B. The Function of Tree Wood
③  C. How do People do with Trees?
④  D. The Usage of Tree Roots
【单选题】 Doctors ___ in every part of the world.
①  need
②  are needing
③  are needed
④  will need
【单选题】 The Peoples Republic of China ___ on October 1, 1949.
①  found
②  was founded
③  is founded
④  was found