26、关于计算机网络，下列说法正确的是______。A.因特网上病毒泛滥，垃圾信息成堆，所以因特网价值不大B.因特网上有丰富的信息资源，应合理使用网络C.因特网对中、小学生的学习并无帮助D.因特网给青少年带来了很多不良影响，青少年不应接触因特网

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26、关于计算机网络，下列说法正确的是______。
A.因特网上病毒泛滥，垃圾信息成堆，所以因特网价值不大
B.因特网上有丰富的信息资源，应合理使用网络
C.因特网对中、小学生的学习并无帮助
D.因特网给青少年带来了很多不良影响，青少年不应接触因特网

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计算机统考

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王安石《游褒禅山记》中所言：“而世之奇伟、瑰怪，非常之观，常在于险远，而人之所罕至焉，故非有志者不能至也。”这句话表明，若想树立改革创新的自觉意识，我们应该思想道德与法治

(单选题) He was poor but dreamed _ _ _ _ being rich.( ) A、forB、toC、ofD、with大学英语(一)

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Deep inside a mountain near Sweetwater in East. Tennessee is a body of water known as the Lost Sea. It is listed by the Guinness Book of Would Records as the world's largest underground lake. The Lost Sea is part of an extensive and historic cave system called Craighead Caverns. The caverns have been known and used since the days of the Cherokee Indian nation. The cave expands into a series of huge rooms from a small opening on the side of the mountain. Approximately one mile from the entrance, in a room called "The Council Room," many Indian artisfacts have been found. Some of the items discovered include pottery, arrowheads, weapons, and jewelry. For many years there were persistent rumors of a large underground lake somewhere in a cave, but it was not discovered until 1905. In that year, a thirteen-year-old boy named Ben Sands crawled through a small opening three hundred feet underground. He found himself in a large cave half filled with water. Today tourists visit the Lost Sea and ride far out onto it in glass-bottomed boats powered by electric motors. More than thirteen acres of water have been mapped out so far and still no end to the lake has been found. Even though teams of divers have tried to explore the Lost Sea, the full extent of it is still unknown. (1)The Lost Sea is unique because it is _ _ _ _ _ _ _ _ .（2分）A、part of a historical cave systemB、the biggest underground lake in the worldC、listed in the Guinness Book of World RecordsD、the largest body of water in Tennessee(2)The Craighead Caverns have been known _ _ _ _ _ _ _ _ .（2分）A、through history B、since the time of the Indian nationsC、since 1905D、since divers explored them(3)Who located the Lost Sea in recent times?（2分）A、The Cherokee Indians.B、Tourists.C、Ben Sands.D、Scientists.(4)What was found in "The Council Room"?（2分）A、A small natural openingB、A large caveC、Another series of roomsD、Many old Indian objects(5)It can be inferred from the passage that the Craighead Caverns presently serve as _ _ _ _ .（2分）A、an underground testing siteB、an Indian meeting groundC、a tourist attractionD、a motor boat race course新发展英语综合教程（二）

(A)(B)(C)(D)工程制图

设前提: p®q. 则"q"是其有效结论。 A、正确 B、错误离散数学（上）