What is the economic batch quantity used to establish?
A. Optimal quantity to be manufactured
B. Optimal reorder quantity
C. Optimal reorder level
D. Maximum inventory level
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Which of the following is incorrect with regard to inventories?(1) The GRN provides information to check the price on the supplier's invoice.(2) Goods received note(GRN) is used to update the inventory records and check that the quantity invoiced by the supplier was actually received.(3) Stock out arises when too little inventory is held.(4) A reorder level can be established by looking at the maximum usage and the maximum lead time.
A. (2) only
B. (2) only
C. (1) only
D. all above
当希望程序在按下鼠标键时就能显示鼠标光标的位置,可以使用MouseEvent的()方法
A. mousePressed
B. mouseEntered
C. mouseClicked
D. mouseExited
要返回事件源,可以使用事件类的()方法
A. public Object getSource()
B. public Component getSource()
C. public String getActionCommand()
D. public int getID()
下面代码的空白处可以填写的类是()。 class B extends Frame implements _________ { public void actionPerformed(_______ e){} }
ActionEvent,ActionListener
B. ActionListener,ActionEvent
C. TextListener,TextEvent
D. ItemListener,ItemEvent