（）will be broadcast every one hour on VHF Channel 6.

A . A、Conning B . B、Navigation/Collision Avoidance C . C、Administration D . D、Above of all

A . B2 B . B1 C . MAR D . NNN

A . Mate on watch B . Master and Chief Mate or other member of the crew C . Master only D . Purser，one of the Mates，and some other member of the crew

A .  Set the value of the DB_BLOCK_CHECKING initialization parameter to TRUE B .  Use the ANALYZE utility. C .  Use the DBVERIFY utility. D .  Use the DBMS_REPAIR package.

A . NBDP/VHF radio B . Inmarsat safetyNet/NAVTEX C . Safety service / Inmarsat-A D . Long range / short range

A .  Hosts 2， 3， and 4 will receive the broadcast.  B .  Hosts 1， 2， 3， and 4 will receive the broadcast. C .  Host 2 and the Fa0/0 interface of R1 will receive the broadcast. D .  Hosts 1， 2 and the Fa0/0 interface of R1 will receive the broadcast.  E .  Hosts 1， 2， 3， 4 and interface Fa0/0 of R1 will receive the broadcast. F .  Hosts 2， 3， 4， and interfaces Fa0/0 and Fa0/1 of R1 will receive the broadcast.

A . Broadcasts only use network layer addressing. B . A broadcast frame is never forwarded by a switch. C . A broadcast address will never be the source address of a frame. D . Broadcast addresses use an incorrect format for the switching table. E . Broadcast frames are never sent to switches.

A . three months B . six months C . twelve months D . eighteen month

A . 0 5 * * 6 /usr/local/bin/myscript B . 0 5 6 * * /usr/local/bin/myscript C . 6 * * 5 0 /usr/local/bin/myscript D . 5 0 Sat * * /usr/local/bin/myscript

A . the final judge of the reliance the mariner can place on the information given B . its immediate importance cannot always be verified before promulgation C . through imperfections in the survey on which it is based，or subsequent alterations to the topography or sea floor D . deferring the promulgation of certain less important informatio

A . Negligence B . Barratry C . Piracy D . Mutiny

A . 5 0 * * 6 /usr/local/bin/myscript B . 6 * * 5 0 /usr/local/bin/myscript C . 0 5 * * 6 /usr/local/bin/myscript D . 0 5 6 * * /usr/local/bin/myscript

A . VHF News B . Channel Rules C . Visibility Time D . Navigational Warning

A. if B. then C. when

What visual artists like painters want to teach is easy to make out but difficult to explain, because painters translate their experience into shapes and colors, not words.They seem to feel that a certain selection of shapes and colors, out of the countless billions possible, is exceptionally interesting for them and worth showing to us.Without their work we should never have noticed these particular shapes and colors, or have felt the delight which they brought to the artist. Most artists take their shapes and colors from the world of nature and from human bodies in motion and at rest; their choices indicate that these aspects of the world are worth looking at, that they contain beautiful sights.Contemporary artists might say that they merely choose subjects that provide an interesting pattern, that there is nothing more in it.Yet even they do not choose entirely without reference to the character of their subjects. If one painter chooses to paint a decaying leg and another a lake in moonlight, each of them is directing our attention to a certain aspect of the world.Each painter is telling us something, showing us something, emphasizing something—all of which means that, consciously or unconsciously, he is trying to teach us. 1.An artist hopes that the public will ____. A.understand him and learn from him B.notice only shapes and colors in his work C.teach him something D.believe what he says in his work 2.It is hard to explain what a painter is saying, because he/ she ___. A.uses shapes and colors instead of words B.uses unusual words and phrases C.does not express himself /herself well D.does not say anything clearly 3.The writer points out that contemporary artists might say their choices of subject _____. A.only provide interesting patterns B.teach the public important truths C.have no pattern or form D.carry a message to the public 4.The writer also points out that contemporary art contains ____. A.nothing but meaningless patterns B.uninteresting aspects of the world C.completely meaningless subjects D.subjects chosen partly for their meanings 5.What is implied in this passage？() A.A painting is more easily understood than a symphony. B.Art is merely the arranging of shape and color. C.Every artist tries to say something to the public. D.One must look beyond shape and color to find what the artist is saying.

A. The length of the house B. How many rooms are in the house C. How many users will be using the wireless network D. The building material of the house E. The cost of the house

22. Determining causes and effects is usually thought-provoking and quite complex. One reason for this is that there are two types of causes: immediate causes, which are readily apparent because they are closest to the effect, and ultimate cause, which, being somewhat removed, are not so apparent and perhaps even hidden. Furthermore, ultimate causes may bring about effects which themselves become immediate causes, this creating a causal chain. For example, consider the following causal chain. Sally, a computer salesperson, prepared extensively for a meeting with an important client (ultimate cause), impressed the client (immediate cause), and made a very large sale (effect). The chain did not stop there: The large sale cause her to be promoted by her employer (effect). A second reason why causal analysis can be so complex is that an effect may have any number of possible or actual causes, and a cause may have any number of possible or actual effects. 23. An upset stomach may be caused by eating spoiled food, but it may also be caused by overeating, flu, allergy, nervousness, pregnancy, or any combination of factors. Similarly, the high cost of electricity may have multiple effects: higher profits for utility companies, fewer sales of electrical appliances, higher prices for other products, and the development of alternative sources of energy. Sound reasoning and logic are central to any causal analysis. Writers of believable causal analysis examine their material objectively and develop their essays carefully. They are convinced by their own examination of the material, but are not afraid to admit other possible causes and effects. Because people are accustomed to thinking of causes with their effects, they sometimes commit an error in logic known as the "after this, therefore because of this" fallacy. 24. This fallacy leads people to believe that because one event occurred after another event, the first event somehow caused the second. That is, they sometimes make causal connection that are not proved. For example, if students began to perform. better after a free breakfast program was instituted at their school, one could not assume that the improvement was caused by the breakfast program. There could of course be any number of other causes for this effect, and a responsible writer on the subject would analyze and consider them all before suggesting the cause. (21)

How should we get（8）of such waste material in such a way（9）it will not harm the（10）？ Where can we（11）distribute it？ One idea is to put this radioactive waste inside a thick container, which is（12）dropped to the deep bottom of the ocean.（13）some scientists believe that this way of（14）nuclear waste could kill fish and other living things in the oceans or interfere（15）their growth. Another way to（16）nuclear waste is to send it into space, to the sun,（17）it would be burned. Other scientists suggest that this polluting material be（18）thousands of meters under the earth’s surface. Such underground areas must be free（19）possible earthquakes. Advances are being made. But it may still be many years（20）this problem could be finally settled. 1. A .Moreover B However C Therefore D Otherwise 2. A .on B. with C. to D. in 3. A. incline B. start C. tend D. keep 4. A .drained B. dumped C. discharged D. disposed 5. A .dealt B. handled C. coped D. processed 6. A .drops off B. gives off C. leaves off D. sets off 7. A .efficient B. unfavorable C. deadly D. painful 8. A. touch B. hold C. grasp D. rid 9. A. so B. which C. that D. thus 10. A. environment B. situation C. location D. residence 11. A .reasonably B. rationally C. regularly D. safely 12. A .then B. even C. ever D. only 13. A .And B. But C. Still D. Thereby 14. A. scattering B. preserving C. containing D. discarding 15. A. in B. with C. against D. at 16. A. remove B. deliver C. transport D. spread 17. A. where B. when C. there D. while 18. A. covered B. deposited C. buried D. reserved 19. A. from B.of C. for D. about 20. A. until B. after C. before D. unless

A.Use a text editor to open C:\windows\security\logs\Backup.log. Search for the dates when backups were scheduled. B. Start the Backup utility by using the Run As option. Provide the account credentials of BackupUser. From the Tools menu, select Report, and then select the most recent report. C. Open the Removable Storage snap-in. Examine the properties of the most recently completed Work Queue object. D. Open the Removable Storage snap-in, and then open the properties of the Operator Requests object. On the General tab, clear the Automatically delete completed requests option

A．up; back B．back; back C．back; up D．on; for