【单选题】Which of the following is true of the Dow Jones Industrial Average?
A.
It is a value-weighted average of 30 large industrial stocks.
B.
It is a price-weighted average of 30 large industrial stocks.
C.
The divisor must be adjusted for stock splits.
D.
It is a value-weighted average of 30 large industrial stocks and the divisor must be adjusted for stock splits.
E.
It is a price-weighted average of 30 large industrial stocks and the divisor must be adjusted for stock splits.
【单选题】关于车内状况检查,以下说法错误的是( )
A.
检查中央扶手箱盖板是否有划伤,开启关闭是否正常
B.
检查车内后视镜表面是否有损伤,防眩目等功能是否正常
C.
检查中央门锁面板是否有划伤、裂纹;开关功能是否正常;开启小灯后的背光是否均匀有效
D.
制动踏板的踩踏过程应轻松,均匀,力量保持不变
【单选题】计算机只能识别机器语言,而人类熟悉高级语言,故人机通信必须借助()
【单选题】下面 关于车身饰条、密封条、装饰条板的检查内容, 错误 的是( ) 。
A.
顶部饰条:检查确认顶部饰条粘贴牢固,无翘起、破损等情况
【单选题】Dihydrogen monoxide is a very dangerous chemical, which is often used as an industrial solvent.
【单选题】下列关于维保检查作业中,说法错误的是
A.
为防止第三者进入发生事故,应设置或张贴“无关人员,严禁进入”的标志
B.
进行电气回路检查作业、更改接线,应断开主电源开关,作放电处理后再进行
C.
严禁短接电梯门锁开关、安全回路开关下,进行正常运行(快车运行)
【单选题】关于叉车的使用维护说法错误的是()
A.
行车前应检查车辆行驶证、驾驶证等行车所必需的各种证件,严禁缺证、少证、无证驾驶。
B.
叉车行驶时货叉底端距地高度应保持1000~1200毫米,门架须前倾
D.
检修叉车时,应将变速杆置于空挡,采取制动、掩轮等防护措施