【单选题】晶体管作为开关使用时,主要工作于( )。
【简答题】二维条形码的种类很多,不同的机构开发的二维条码具有不同的________________________,编写,读取方法
【简答题】阅读理解。 The human body is a living machine, and, like all machines, it needs 'fuel' to supply it with energy. This is provided by the food we eat. But how much do we need to stay healthy? The energy val...
【简答题】W hat is a component , s e t, compo site , assembled part, what is the total assembly of a machine?
【单选题】Which of the following statements is FALSE?
A.
The machine has not been put into use yet.
B.
With the machine, you could go to many countries in the world.
C.
The machine can store up to 240 words.
D.
With the machine, you will be able to talk with foreigners.
【单选题】某工业企业月初库存原材料计划成本为18 500元,材料成本差异为贷方余额1 000元,本月10日购入原材料的实际成本为42 000元,计划成本为41 500元。本月发出材料计划成本为30 000元。本月月末库存材料的实际成本约为( )元。
【简答题】某工业企业月初库存原材料计划成本为185 000元,材料成本差异贷方余额为10 000元,本月12日购入原材料的实际成本为420 000元,计划成本为415 000元。本月发出材料计划成本为300 000元。本月月末库存材料的实际成本为( )元。 A.300 000 B.297 500 C.302 500 D.295 000 A. B. C. D.