下列关于loop back interface的说法（）是不正确的？

A:loop back interface是CISCO路由器上缺省端口 B:loop back interface一个永远不会DOWN的逻辑端口 C:loop back interface是一个做自环测试的端口 D:loop back interface是对端使用LOOPBACK命令测试链路后本端的端口状态

One of goals set by the European Union's Lisbon summit is

A:to strive for the lead in the world's economy. B:to subject more companies to bankruptcy. C:to revise an approach to bankrupt stipulations. D:to have advantage over American firms.

We will {{U}}set off{{/U}} after he finishes packing.

A:set out B:set back C:set up D:set down

NET is both a business strategy from Microsoft and its (71) of (72) support for what are known as Web services, the ability to use the Web rather than your own computer for various services. Microsoft’s goal is to provide individual and business users with a (73) interoperable and Web-enabled interface for applications and computing devices and to make computing activities increasingly Web browser-oriented. The .NET (74) includes servers; building-block services, such as Web-based data storage; and device software. It also includes Passport, Microsoft’s fill-in-the-form-only-once identity (75) service.

A:individual B:collection C:set D:unit

NET is both a business strategy from Microsoft and its (6) of (7) support for what are known as Web services, the ability to use the Web rather than your own computer for various services. Microsoft’s goal is to provide individual and business users with a (8) interoperable and Web-enabled interface for applications and computing devices and to make computing activities increasingly Web browser-oriented. The NET (9) includes servers; building-block services, such as Web-based data storage; and device software. It also includes Passport, Microsoft’s fill-in-the-form-only-once identity (10) service.

A:individual B:collection C:set D:unit

下列哪些命令可以用来查看DDR端口(在端口 S1 上配置)信息______

A:show interface B:show running-conting C:show interface s1 D:show diater interface s1