【简答题】设三相电源的相电压为 U 2 ,三相半波可控整流电路接电阻负载时,晶闸管可能承受的最大反向电压为电源线电压的峰值,即 ,其承受的最大正向电压为 。
【单选题】Which of the following best describes a period cost? ( )
A.
A cost that relates to a time period which is deducted as expenses for the period and is not included in the inventory valuation.
B.
A cost that can be easily allocated to a particular period, without the need for arbitrary apportionment between periods.
C.
A cost that is identified with a unit produced during the period, and is included in the value of
D.
inventory. The cost is treated as an expense for the period when the inventory is actually sold.
E.
A cost that is incurred regularly every period, eg every month or quarter. (2 marks)
【单选题】坚持党的领导,不是一句空的口号,必须具体体现在( )领导立法、保证执法、支持司法、带头守法上。
【判断题】教学口语是指执教者通过发声(包括借助其他媒体以声音形式)传达呈现和交流教学信息的操作。
【单选题】带前室的厕所有利于隐蔽,按规定,前室的深度不应小于( )米
【判断题】教学口语是指执教者通过发声(包括借助其他媒体以声音形式)传达呈现和交流教学信息的操作。( )
【判断题】教学口语是指执教者通过发声(包括借助其他媒体以声音形式)传达呈现和交流教学信息的操作。
【单选题】For a manufacturing company, identify the following as either product cost or period cost: Raw materials