If it becomes necessary for a stand-on vessel to take action to avoid collision，she shall NOT，if possible，（）

A .  Auto B .  Negotiate C .  Designate D .  No negotiate

A . deballasting the rig B . ballasting the rig C . paying out cable on the windward side D . paying out cable on the leeward side

A . set the water lights on immersion B . release the dye-marker from the liferaft C . free the liferaft from the vessel D . break the seal on the carbon dioxide cylinder

A .  en standby preempt B .  standby preempt enable C .  standby preempt D .  hot standby preempt

A . the chief engineer must be informed at first B . the captain must be informed at first C . it must be taken by the duty engineer D . the generator engine must be stopped

A .  Recover the online redo log from backup. B .  Delete and re-create the log file. C .  Use the alter database clear logfile command to clear the log file. D .  Shut down the database and restart it. E .  Shut down the database and then mount it. Clear the log file with the alter database clear logfile command and then restart the database with alter database open resetlogs.

A . configure static frame relay map entries for each subinterface network. B . remove the ip address from the physical interface C . create the virtual interfaces with the interface command D . configure each subinterface with its own IP address E . disable split horizon to prevent routing loops between the subinterface networks F . encapsulate the physical interface with multipoint PPP

A . The towing line between the two vessels should be clear of the water B . The towing line should be taut at all times between the vessels C . There should be a catenary so the line dips into the water D . None of the above

A . fuel pump should be removed and all connections blanked off B . cylinder oil feed rate should be increased slightly above that used at normal sea speed C . cylinder oil feed rate should be reduced D . cylinder oil feed rate should be increased to the maximum flow capable of the metering pum

A . maritime safety administration B . ship survey bureau C . company manager D . captai

A . configure static frame relay map entries for each subinterface network. B . remove the ip address from the physical interface C . create the virtual interfaces with the interface command D . configure each subinterface with its own IP address E . disable split horizon to prevent routing loops between the subinterface networks F . encapsulate the physical interface with multipoint PPP

A . stop B . start C . speed up D . slow dow

Stephen Spindler and his colleagues from the University of California at Riverside have found that some of an elderly mouse's liver genes can be made to behave as they did when the mouse was young simply by limiting its food for four weeks. The genetic rejuvenation won't reverse other damage caused by time for the mouse, but could help its liver metabolize drugs or get rid of toxins. Spindler's team fed three mice a normal diet for their whole lives, and fed another three on half-rations. Three more mice were switched from the normal diet to half-feed for a month when they were 34 months old—equivalent to about 70 human years. The researchers checked the activity of 11,000 genes from the mouse livers, and found that 46 changed with age in the normally fed mice. The changes were associated with things like inflammation and free radical production—probably bad news for mouse health. In the mice that had dieted all their lives, 27 of those 46 genes continued to behave like young genes. But the most surprising finding was that the mice that only started dieting in old age also benefited from 70 percent of these gene changes. "This is the first indication that these effects kick in pretty quickly," says Huber Warner from the National Institute on Aging near Washington, D.C.. No one yet knows if calorie restriction works in people as it does in mice, but Spindler is hopeful. "There's attracting and tempting evidence out there that it will work," he says. If it does work in people, there might be good reasons for rejuvenating the liver. As we get older, our bodies are less efficient at metabolizing drugs, for example. A brief period of time of dieting, says Spindler, could be enough to make sure a drug is effective. But Spindler isn't sure the trade-off is worth it. "The mice get less disease, they live longer, but they're hungry," he says. "Even seeing what a diet does, it's still hard to go to a restaurant and say: 'I can only eat half of that'." Spindler hopes we soon won't need to diet at all. His company, Life Span Genetics in California, is looking for drugs that have the effects of calorie restriction. According to the passage, which of the following is NOT true？ A．Eating less than usual might make us live longer. B．If we go on a diet when old, we may keep healthy. C．Dieting might not be needed. ~ D．We have to begin dieting from childhood.

A.maritime safety administration B.ship survey bureau C.company manager D.captain

(14)

One place where children (3)_____ A-characteristics is school, which is, by its very nature, a highly competitive institution. Too many schools adopt the 'win at all costs' moral standard and (4)_____ their success by sporting (5)_____ The current passion for making children compete against their classmates or against the clock produces a two-layer system, in which competitive A-type seem in some way better than their B-type fellows. Being too (6)_____ to win can have dangerous (7)_____: remember that Pheidippides, the first marathon runner, dropped (8)_____ seconds after saying: "Rejoice, we (9)_____!" (10)_____ the worst form. of competition in schools is the disproportionate emphasis on examinations. It is rare that school (11)_____ pupils to concentrate on those things they do well. The merits of competition by examination are somewhat (12)_____, but competition in the certain knowledge of failure is positively harmful. Obviously, it is neither practical nor (13)_____ that all A-youngsters change into B's. The world needs different kinds of person, and schools have an important duty to try to fit a child's personality to his possible future (14)_____ It is top management. If the (15)_____ of schools with academic work was (16)_____, more time might be spent teaching children surer values. Perhaps selection for the (17)_____ professions, especially medicine, could be made less by good grades in chemistry and more by such (18)_____ as (19)_____ and sympathy. It is surely a mistake to choose our doctors exclusively from A-type stock. B's are important and should be (20)_____. A．prevailing B．profound C．precautionary D．progressive

A．ingredient B．reliance C．shelter D．inclination

是 否

A．adverse B．chronologic C．unravel D．erosion

A.Without the rain B.Because of the rain C.Since the rain D.Despite the rain

A．A.within B．B.about C．C.under D．D.after