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Identify three situations in which you would NOT be able to drop a tablespace. （）
A . when the tablespace is online
B . when the tablespace has segments with data in it
C . when the tablespace is a default permanent tablespace for the database
D . when the tablespace contains a table that is currently being used by transactions
E . when the tablespace contains undo data that is needed to rollback an uncommitted transactio
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If you are guilty of failure to properly perform your duties as Operator of Uninspected Towing Vessels，which of the following actions may NOT be taken? （）
A . Issuance of a letter of warning
B . Suspension of your license
C . Revocation of your license
D . A fine placed against your license
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You lost the index tablespace in your database. You are not able to use tablespace point-in-time recovery on the index tablespace. What could be the reason for this？（）
A . The index tablespace contains bitmap indexes.
B . The index tablespace contains more than one data file.
C . The index tablespace supports only complete recovery.
D . The index tablespace is not a dictionary-managed tablespace.
E . There is a dependency relationship between a table and its indexes.
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You have 30 NT 4.0 machines and 5 W2k Pro machines on your network. You want to share files on the W2kPro machines that only they can access. The NT 4 machines must not be able to access those shared files at all？ （）
A . You should import hisecws.inf security template.
B . You should import hisecdc.inf security template.
C . You should import securews.inf security template.
D . You should import compatws.inf security template.
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Would you be able to go to the party?（）
A . I don't expect
B . I'm afraid not
C . I don't think so
D . I believe not
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Not being able to speak English, they felt rather（）in the USA.
A . strange
B . puzzled
C . l one
D . lonely
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In Turkey, when visiting someone in their home, be careful not to compliment your host on something or it may be given to you as a gift.
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原文:Remember you may be taken to court for not doing so, and you may be fined if you cannot prove to the court that you have been excused from wearing it.译文:注意你如果不这么做(系安全带)的话,你有可能被告上法庭,而且你有可能被处以_______,除非你能证明你有不带安全带的理由.
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Why does not being able to choose what you want to eat give out the wrong signs?
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If you add enough insulation to your house, you may be able to________.
A．improve your work environment
B．cut your utility bills by half
C．get rid of air-conditioners
D．enjoy much better health
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A meager diet may give you health and long life, but it's not much fun—and it might not even be necessary. We may be able to hang on to most of that youthful vigor even if we don't start to diet until old age.
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.
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Your personal circumstances are equally important. For example, you may want to be a Pilot but can’t become one because your eyesight is not good enough. ____5____ You should reassess your goals, and
A．This can affect your work．
B．So how should you motivate yourself
C．However, this should not discourage you．
D．So why should we try to set specific goals
E．They can change according to circumstances．
F．Motivation is what you need most to do a good jo
B．G． Without motivation you can neither set a goal nor reach it
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--will you be able to finish the job this week？ --________, but I’m not skilled enough, you know
[A] I can’t say so
[B] I expect so
[C] I’m sure so
[D] I don’t know so
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(2019安徽省完型填空)
B
Are you shy? If you are, you are not alone. In fact, nearly 50% of people are shy, and almost 80% feel shy at some point in their lives. Why are people ?
It is found that family size might people to be shy. Children with no brothers and sisters may be shy. Growing up , they often play by themselves. They are not able to develop the same social skills as children from big .
Another cause of shyness could be . As more and more people use the Internet, they less time outside, talking to people. As a result, they lose practice at conversation. to new people face to face can make them feel nervous.
For shy people, it can be to make friends, speak in class, and even get a good job. But scientists say you can your shyness. They suggest trying things and practicing conversation.
Anyway, don't be afraid of shyness — you are valued for what you are!
A run intoB look forC get overD depend on
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These social support may help explain why many women seem to be better able to deal with stress than men（）
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听力原文：A book may be compared to your neighbor; if it's good, it can not last too long; if bad, you can not get rid of it too early.
(29)
A．It is good to have a nice neighbor as long as possible, and it is bad to get rid of a nasty neighbor.
B．You never get tired of a good book; while you should get rid of a bad one the earlier the better.
C．It is good to have a nice neighbor as long as possible, and a bad neighbor as short as possible.
D．A good book is a good neighbor who will last long, and a bad one is just like a bad neighbor who would like to get rid of you.
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Man: Did you see Martha just now？ I want to ask her to go with us to the concert tonight. Woman: She must be around somewhere. You may still be able to catch her. Question: What does the woman mean？
A．She knows where Martha has gone.
B．Martha will go to the concert by herself.
C．It is quite possible for the man to find Martha.
D．The man is going to meet Martha at the concert.
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This book may not change your life. But if you have a tendency to be messy and have already broken your new year resolutions to be neater in future, it will certainly make you feel better about your natural inclinations. Untidiness, hoarding, procrastination and improvisation are not bad habits, the authors argue, but often more sensible than meticulous planning, storage and purging of possessions.
That is because the tidiness lobby counts the benefits of neatness, but not its costs. A rough storage system (important papers close to the keyboard, the rest distributed in loosely related piles on every flat surface) takes very little time to manage. Filing every bit of paper in a precise category, with colour-coded index tabs and a neat system of cross-referencing, will certainly take longer. And by the end, it may not save any time. Your reviewer's office is easily the most untidy in The Economist (not entirely his own work, it should be said, thanks to the heroic efforts of his even untidier office-mate). But when it comes to managing information, there seems to be no discernible difference in the end result.
The authors of this book trawl the furthest reaches of psychology, management studies, biology and physics to show why a bit of disorder is good for you. Chiefly, it creates much more room for coincidence and serendipity. Alexander Fleming discovered penicillin because he was notoriously untidy, and didn't clean a Petri dish, thus allowing fungal spores to get to work on bacteria. He remarked wryly on visiting a colleague's spotless lab: "no danger of mould here".
It can also help make sense of things. Hearing depends on random movement of molecules: when they coincide with sounds from outside, they are strong enough to stimulate the inner ear. A bit of background noise on the phone enables our ears to filter out echoes. A slightly mushy photograph can be easier to understand. Music and art depend on mess.
Procrastination makes sense too. America’s Marine Corps, the authors repeat (several times), never makes detailed plans in advance. Leaving important things to the last minute reduces the risk of wasting time on things that may ultimately prove not important at all.
The authors are witheringly contemptuous of the bogus equation of tidiness and morality—for example in corporate "clean desk" policies. Disorder and creativity are so closely linked that any employer who penalizes the first sacrifices the second, they argue. America's professional organizers, a thriving and lucrative cult of tidiness coaches, are merchants of guilt, not productivity boosters.
It's all fine, up to a point. But the book has two weaknesses. One is that it overstates the case. The case for tidiness in some environments—surgery, a dinner table or income tax returns—is really overwhelming. The other is that the book is a bit repetitive and disorganized. Even readers who love mess in their own lives don't necessarily like it in others.
Paraphrase the sentence "the tidiness lobby counts the benefits of neatness, but not its costs". (para. 2)
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Directions： Suppose you have to cancel your travel plan and will not be able to visit Professor Smith. Write him an email to 1）apologize and explain the situation， and 2）suggest a future meeting. You should write about 100 words on the ANSWER SHEET. Do not use your own name. Use“Li Ming” instead. Do not write your address.
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听力原文：M: Have you heard that in another few years you may be able to buy a car that changes colors every day to match the outfit you are wearing？
W: Oh, please be serious! I suppose they will change shapes as well. If you want a big car to take all your friends camping, I suppose you'll just be able to snap your fingers and make it happen. Or if you want a sporty two-seater, you could just tell the car what you wanted, and it would do the rest. Is that how it will work？
M: No, I am serious. They have found a way to alter the surface of metals so that they can reflect different colors just by passing a small amount of electricity over them.
W: Oh, I see. So anything that touches the outside of the car will get a shock. That sounds lovely.
M: It's only a tiny amount of electricity. It wouldn't be enough to shock anybody.
W: Well, it sounds pretty difficult to believe.
M: Yes, it's quite amazing. The important thing you have to remember is that the color of an object is really just an illusion created by the way light bounces off its surface. Engineers have been able to produce a car that changes colors at the touch of a button by slightly rearranging the position of the particles on the surface of the metal.
W: It sounds so amazing. But I guess it could be possible.
M: It is possible today. The only problem is that it is very expensive. To produce a car with a surface that changed colors would cost almost twice as much as what a regular car costs. For that much money you could just by the car and have it repainted twenty times, so it's not very practical yet.
W: Yes, but in other ways it could be more practical. If you took your car to be painted twenty times, it would use quite a bit of polluting chemicals, and it would take a long time.
M: You're right there, but how many people really get their car repainted that many time？
W: Hmm, I suppose you're right, but I sure would love to have my car match my outfit every day.
(26)
A．She is impressed.
B．She is doubtful.
C．She is shocked.
D．She is surprised.
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________you need to be able to concentrate.
A:At work ;
B:Work ;
C:Working ;
D:Worked
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A.They may not be able to inflate their balloons.B.There are too many balloons to launch at once.C.Their flight pattern could be uncertain due to the wind.D.Theyll lose money if some balloons cant take off,
A.They
B.
B.There
C.
C.Their
D.
D.Theyll
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-- Would you be able to come to the party？ -- I ___.
A.am afraid not
B.believe it
C.don’t expect
D.don’t hope so
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4、“不积跬步，无以至千里；不积小流，无以成江海”出自（） “If you do not accumulate small steps, you will not be able to travel thousands of miles; if you do not accumulate small streams, you will not be able to build rivers and seas.” comes from （)
A．《荀子·劝学》 Xun Zi's Persuasion of Learning
B．《老子》 Tao Te Ching
C．《韩非子》 Han Feizi
D．《孟子》 The Mencius
