为窗口中的命令按钮设置单击鼠标时发生的动作,应选择设置其属性对话框的______。
A.格式选项卡
B.事件选项卡
C.方法选项卡
D.数据选项卡
参考答案:B
A salesperson works 50 weeks each year and makes an average (arithmetic mean) of 100 sales per week. If each sale is worth an average (arithmetic mean) of $1,000, then what is the total value of sales made by the salesperson in a year ?()
A.$50,000
B.$100,000
C.$500,000
D.$1,000,000
E.$5,000,000
什么是结构面?结构面按成因可分为哪几种?