Task4 Directions：The following is a list of terms used on the internet．(下略) A—Analogy Digital B—Arithmetic and Control Unit C—Asymmetrical Digital Subscriber line D—Automatic Digital up Unit E—Application Program Interface F—Audio Video G—Bulletin Board System H—Basic Input Output System I—Broad-band Integrated Service Digital J—Bits Per Second Network K—Computer-Aided Designed Drafting L—Active Server Page M—Common Gateway Interface N—World Wide Web O—Uniform Resource Locator ( )模拟数字 ( )宽带综合义务数字网