【单选题】GEN代表: A、彩色显示 B、超级增强 C、连续扫描 9、F1代表: A、组合处理 B、信号放大 C、可变吸收率增减 10、YZ代表: A、局部放大 B、垂直放大 C、超级穿透 11、 安检人员最基本的职业道德是 ( ) A、爱岗敬业,忠于职守B、钻研业务,提高技能C、文明执勤,优质服务D、遵纪守法,严格检查 12、 安全技术检查工作的特点是...
【单选题】GEN代表: A、彩色显示 B、超级增强 C、连续扫描 9、F1代表: A、组合处理 B、信号放大 C、可变吸收率增减 10、YZ代表: A、局部放大 B、垂直放大 C、超级穿透 11、 安检人员最基本的职业道德是 ( ) A、爱岗敬业,忠于职守B、钻研业务,提高技能C、文明执勤,优质服务D、遵纪守法,严格检查 12、 安全技术检查工作的特点是...
【单选题】在房地产市场调查的类型中,房地产价格调查属于( )。
【单选题】The early electric cars gradually disappeared because of______.
A.
gasoline-powered cars.
B.
technological restrictions.
C.
lacking government's support.
D.
no profits and unfeasibility.
【单选题】According to the passage, electric and hybrid cars failed to capture the American automotive market in the early twentieth century because of what factor?
A.
The improvement in cost and performance of gasoline-powered cars
B.
The superior fuel efficiency of hybrid cars
C.
The substandard performance of steam-powered cars
D.
Consumer fear of being electrocuted by gasoline-electric hybrids
E.
Government subsidies for gasoline- and coal-powered cars
【单选题】What are the automobile engineers trying to do?
A.
Improve the batteries of electric cars.
B.
Increase the number of electric cars.
C.
Design a new device for electric cars.
D.
Look for new ways to improve safety.
【单选题】What is the main advantage of electric cars over gas-powered cars?
B.
They do not pollute as much.
C.
They are simpler to drive.
【单选题】房地产市场竞争情况调查属于房地产市场调查类型中的( )。