單項選擇題（）are Internet addresses used by Web browsers to locate I nternet resources.
A. HTTP
B. URLs
C. DNS
D. HTML
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1.單項選擇題A user typically connects to the Internet in one of two ways： dedicated access and（）access.
A. broadcasting
B. point-to-point
C. dial-up
D. Internet
2.單項選擇題The Internet is based on the concept of a （an） （）relationship between computers.
A. browser/server
B. client/customer
C. entity/relationship
D. client/server
