【说明】
非对称数字用户线(ADSL)是接入Internet的一种宽带技术，图7-7为一台带网卡的PC机采用ADSL方式接入Internet的网络结构图。现在比较成熟的ADSL标准有两种：G.DMT和G.Lite。其中，G.DMT标准支持的最高上行、下行速率分别为1.5Mb/s、8Mb/s，G.Lite标准支持的最高上行、下行速率分别为 512Kb/s、1.5Mb/s。

【问题3】
目前在使用ADSL访问Internet时，要不要收取电话费ADSL有哪两种IP地址的分配方式

阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。
Captain Cook Arrow Legend It was a great legend while it lasted, but DNA testing has (1) ended a two-century-old story of the Hawaiian arrow carved from the bone of British explorer Captain James Cook (2) died in the Sandwich Islands in 1779. "There is (3) Cook in the Australian Museum," museum collection manager Jude Philip said not long ago in announcing the DNA evidence that the arrow was not made of Cook’s bone. But that will not stop the museum from continuing to display the arrow in its (4) , "Uncovered: Treasures of the Australian Museum," which (5) include a feather cape presented to Cook by Hawaiian King Kalani’opu’u in 1778. Cook was one of Britain’s great explorers and is credited with (6) the "Great South Land," (7) Australia, in 1770. He was clubbed to death in the Sandwich Islands, now Hawaii. The legend of Cook’s arrow began in 1824 (8) Hawaiian King Kamehameha on his deathbed gave the arrow to William Adams, a London surgeon and relative of Cook’s wife, saying it was made of Cook’s bone after the fatal (9) with islanders. In the 1890s the arrow was given to the Australian Museum and the legend continued (10) it came face-to-face with science. DNA testing by laboratories in Australia and New Zealand revealed the arrow was not made of Cook’s bone but was more (11) made of animal bone, said Philp. However, Cook’s fans (12) to give up hope that one Cook legend will prove true and that part of his remains will still be uncovered. As they say there is evidence not all of Cook’s body was (13) at sea in 1779. "On this occasion technology has won," said Cliff Thornton, president of the Captain Cook Society, in a (14) from Britain. "But I am (15) that one of these days...one of the Cook legends will prove to be time and it will happen one day." DNA n. 脱氧核糖核酸 Hawaiian adj.夏威夷的 Uncovered adj.被发掘的 cape n.斗篷 credit v.把……归功于 club v.用棍棒打 1. A. finally B. firstly C. lately D. usually 2. A. whose B. who C. which D. what 3. A. some B. none C. neitherD. no 4. A. cinema B. exhibition C. shop D. market 5. A. must B. did C. has to D. does 6. A. discovering B. visitingC. travelingD. using 7. A. then B. now C. past D. previously 8. A. how B. where C. when D. that 9. A. conversation B. fight C. meal D. dance 10. A. however B. until C. after D. whenever 11. A. helpfullyB. usefullyC. likely D. readily 12. A. refuse B. return C. regain D. reply 13. A. collected B. washedC. stored D. buried 14. A. statementB. suggestion C. proposalD. guess15.