题目内容

目前在互联网上应用最广泛的服务是()

A. FTP服务
B. Web服务
C. Telnet服务
D. Gopher服务

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Internet使用的网络协议是()

A. TCP协议
B. UDP协议
C. TCP/IP协议
D. IP协议

HTTP是一种什么协议()

A. 文件传输协议
B. 邮件协议
C. 远程登陆协议
D. 超文本传输协议

Grayson Enterprises manufactures springs and shock absorbers. Springs account for 40% of the company's total sales revenue, whereas shocks account for about 60%. The contribution margin ratios for springs and shocks are 45% and 35%, respectively. Grayson's fixed costs average $450,000 per month. Grayson's monthly break-even point expressed in sales dollars is: ( )

A. $1,000,000.
B. $1,285,714.
C. $1,153,846.
D. $2,285,714

A budget that can be adjusted easily to show budgeted revenues, costs, and cash flows at different levels of activity is known as( )

A flexible budget.
B. A master budget.
C. A production budget.
D. A multi-level budget.