Human communication is unique for its（) use of abstract language.

You are developing a Windows Communication Foundation (WCF) service that must be discoverable.You need to ensure that the ServiceHost instance supports multiple discovery versions.What should you do？（）

A. - Specify a unique DiscoveryVersion parameter for each endpoint constructor. - Use the same value for the Address property of each endpoint.

B. - Use the endpoint constructor without the DiscoveryVersion parameter. - Use a unique value for the Address property of each endpoint.

C. - Specify a unique DiscoveryVersion parameter for each endpoint constructor. - Use a unique value for the Address property of each endpoint.

D. - Use the endpoint constructor without the DiscoveryVersion parameter. - Use the same value for the Address property of each endpoint.

LOGO is unique because ______.

A．it is an educational program

B．it is in total control of human beings

C．it allows children to teach the computer to think

D．children use it

LOGO is unique because ______.

A．it is an educational program

B．it is in total control of human beings

C．it allows children to teach the computer to think

D．children use it

LOGO is unique because ______.

A．it is an educational program

B．it is in total control of human beings

C．it allows children to teach the computer to think

D．children use it

A．they think as the latest invention in communication technology it hasn't reach its best

B．they think it may be replaced by newer communication technology it does the older ways of communication

C．they think it is no better than the older ways of communication

D．they think its invention is one inevitable step in human evolution just like that of the older ways of communication

Asymmetry is a unique feature of the human body.

A．Y

B．N

C．NG

LOGO is unique because ______.

A．it is an educational program

B．it is in total control of human beings

C．it allows children to teach the computer to think

D．children use it

In the last paragraph, the author concludes that______.

A．the weather is a universal topic for human communication

B．phatic communication differs from culture to culture

C．the English and people in many other European countries have common language for phatic communication

D．every culture has its own way to communicate ideas