中国古文化有两个重要的______：一个是源于渭河流域的仰韶文化，一个是源于大凌河流域的红山文化。

LAN into two separate networks with a router. What will be the affect of this change？

A．The number of broadcast domains will be decreased.

B．It will make the broadcasting of traffic between domains more efficient between segments.

C．It will increase the number of collisions.

D．It will prevent segment 1's broadcasts from getting to segment 2.

E．It will connect segment 1's broadcasts to segment 2.

u are instructed to enlarge the area covered by a single LAN segment on the TestKing network.Which of the following are layer 1 devices that you can use？（）

A. A switch.

B. A router.

C. A network adapter card.

D. A hub.

E. A repeater.

in: Chicago, Detroit, Philadelphia, Toronto, and Atlanta. These offices need to be connected in a WAN, and Testking wishes to do this via a hub and spoke arrangement that will utilize packet-switched technology.Which one of the WAN technologies below would be the best choice for Testking？（）

A. ISDN

B. Wireless

C. Frame Relay

D. T1 leased line

E. ATM

F. VPN

A McDonald’s Big Mac value meal consists of a Big Mac Sandwich ($2.99), Large Coke ($1.39), and a Large Fry ($1.09). Assuming that there is a competitive market for McDonald’s food items, at what price must a Big Mac value meal sell to insure the absence of an arbitrage opportunity and uphold the law of one price？

A、$4.08

B、$4.38

C、$5.47

D、$5.77

A.It is one of the world&39;s most healthy diets.

B.It contains large amounts of dairy products.

C.It began to impact the world in recent years.

D.It consists mainly of various kinds of seafood.

corporate sector and the public sector.()

A．A patent

B．A corporate bond

C．A corporate stock

D．A corporate loan

A mating group consists of two females and one male.

A．Y

B．N

C．NG

fe.

A. consists of... containing

B. consists of... including

C. consists in... including

D. consists in.,. containing

A．corporate

B．corporation

C．cooperate

D．cooperation