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The（）has a built-in world map; most areas are displayed on a scale of 4000 nm from the top to the bottom of the screen，and can be zoomed in to 150 nm.
A . chartplotter
B . C-MAP NT
C . C-Cards
D . PPI
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You are connected using SQL* Plus to a multitenant container database (CDB) with SYSDBA privilegesand execute the following sequence statements:What is the result of the last SET CONTAINER statement and why is it so?（）
A . It succeeds because the PDB_ADMIN user has the required privileges.
B . It fails because common users are unable to use the SET CONTAINER statement.
C . It fails because local users are unable to use the SET CONTAINER statement.
D . If fails because the SET CONTAINER statement cannot be used with PDB$SEED as the target pluggable database (PDB).
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https://assets.asklib.com/images/image2/2018073111405861900.jpgWhich the three EL expressions， inserted at line 15， are valid and evaluate to "3"？ （）
A . ${vals.2 }
B . ${vals ["2"]}
C . ${vals.index }
D . ${vals[index]}
E . ${vals} [index]
F . ${vals.（vals.index）}
G . ${vals[vals[index-1]]}
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Why are consumer-grade access points and routers not the best choice for SMBs?（）
A . They are not designed for multi-access-point networks.
B . They do not scale well.
C . They have higher total cost of ownership than some enterprise products.
D . Their upgrade paths compete directly against Cisco upgrade paths.
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The reason why more and more of the large merchant vessels are being powered by medium-speed diesel engines is （）.
A . they operate between 150 and 450 rpm
B . they are connected to the propeller by gearing
C . their smaller size and weight
D . they can be connected directly to the propeller without gearing
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View Exhibit1 and Exhibit2 to examine the current memory allocation and parameter settings，respectively.
https://assets.asklib.com/images/image2/201808011533265792.jpg
Why are advisors not available for the shared pool and the buffer cache()
A . because the DB_CACHE_ADVICE parameter is set to OFF
B . because Automatic Memory Management （AMM） is disabled for the database instance
C . because Automatic Shared Memory Management （ASMM） is enabled for the database instance
D . because the values for the DB_CACHE_SIZE and SHARED_POOL_SIZE parameters were not setinitially
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（）are experienced in temperate latitudes during warn summer weather but rarely exceed Force 3 and may extend 10 to 15 miles on either side of the coastline.
A . Trade Winds
B . Winds of the temperate zones
C . Monsoons
D . Land and Sea Breeze
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Which is not the reason why people are religious?( )
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Why Andy feel that he and his wife are not really welcome.
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Why are some of the works of Steinbeck considered controversial?
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People believe that the sky is round and that is why the yurts are built the same shape.
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41. The names of lights having a range of 15 miles and over are printed in ______.
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Why does the author say space projects are practical？
A.Because they make science exciting.
B.Because they promote economic growth.
C.Because they increase Americas national power.
D.Because they show what technology can bring.
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Why are the eight coins of euro different in composition, weight, thickness, and milling？
A．Because each nation wants to keep its characteristics.
B．Because they are designed by different artists from 8 countries.
C．Because it will enable the blind to distinguish between them easily.
D．Because Denmark and other countries want to have their own coins.
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听力原文：F: What I can't make out you is why you are so keen on the Layer-de-la-Haye house. Why on earth should we choose, actually choose, to live out in a village, even if it is a popular village. You know that I would love to live in town and...
M: ...and be boxed in by a thousand other houses I suppose~ Surrounded by a thousand faceless neighbors. No, let' s go for the village. After all I'm the one who has to do all the traveling. Back and forth to London every day. And I would rather add a 15 minutes bus ride to the train ride than be--How does it go？--cabin' d, cribb' d confi' d.
F: That' s all very well...all very well to take that romantic attitude. You know... you think you can get out of everything...wriggle out of any argument...by quoting Shakespeare. What about my preferences？ You are being selfish you know.
M: Selfish？ Me？
F: Yes. Think of the children. Its seems to me that you are so carried away with the idea that your personal likes and dislikes are making you anything but practical.
What's the relations between the speakers？
A．Friends.
B．Colleagues.
C．Husband and wife.
D．Landlord and tenant.
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The thought of dying slowly and painfully ______ me. I really can’t understand why so many people are opposed to euthanasia.
A．A. terrifies
B．B. curses
C．C. puzzles
D．D. injures
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The following are all mentioned as reasons why the airlines are having a hard time EXCEPT that
A．the tourist industry is experiencing an all-time low.
B．there is no increase in the number of passengers.
C．there are more seats on the planes than needed.
D．the competition between airlines is strong.
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听力原文：Why are college students so prone to sleep deprivation？ The problem often begins during the teen years. Most high school kids admit that they are often sleepy and 15 percent admit that they fall asleep in class.
Lack of sleep causes many problems, not the least of which is the difficulty it adds to learning. It's also detrimental to the immune system and motor skills. Students (and everyone else) need at least eight hours of sleep to maintain optimum health and learning capabilities. Yet, with the pressure of school, family and social life, few students are sleeping near the required amount.
College life only escalates the problem. Added to the above activities are more hours needed for studies. Some students also hold down a part time job to help defray college expenses. Some students are married and trying to support a family. Because of all these pressures there is also an increase in stress. Stress can lead to insomnia and even more lost sleep.
With the approach of finals, the problem can only grow worse. Students force themselves to stay awake to study. It's called cramming for exams, and it can eat away at sleep hours already far too meager. Too many nights of forced wakefulness can eventually lead to a case of full-blown insomnia and other sleep abnormalities.
(30)
A．Eating disorders, low immunity and poor motor skills.
B．Difficulty concentrating, poor motor skills, divorce.
C．Low immunity, poor self esteem, eating disorders.
D．Poor motor skills, difficulty concentrating, low immunity.
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There are two great mysteries about the beach. One is why human beings flock there by thousands, only to prostrate(俯卧) themselves in dense packs of glistening flesh. The other is why the sand goes there. Strange as it seems, oceanographers have never really understood why sand piles up on the shore. Now Douglas Inman and Daniel Conley think they have solved the puzzle.
The puzzle had to do with waves. Though it might seem intuitive that waves carry water to shore, and sand along with it, it's not that simple. The crest(浪尖)of a passing wave lifts a given hit of water upward and landward, but the ensuing trough(波谷) pushes the water back down and Out to sea. Near the bottom, there the sand is, the water was always assumed to just slide back and forth—and the sand with it. "If you take a very aloof look at a beach," says Inman, "you'll realize that if the two motions move sand back and forth the same amount, then all the sand should end up in deep water.'
So for beaches to exist, the crest's onshore flow must somehow move enough sand up the beach to counter the seaward tug of both the trough and gravity . The pressure changes in the sand bed, Inman and Conley think, are the key to beach creation. They found that sand doesn't just slide back and forth with each passing wave. Under a trough, it does slide seaward, in a thin layer just above the bottom. But under a crest its movement is often more elaborate. The higher pressure under a crest—higher because the water is piled higher—forces water into the porous(多孔的) sand. This creates strong whirlpools just above the sand, which help loosen it. As the crest passes overhead, the sand first rushes across the bottom; then it abruptly turns violent lifting off the bottom in large, boiling bunches. Finally, just after the crest passes, the sand explodes up into the great water column. The boiling and rushing move more sand than the backsliding under a trough, so there's a net movement of sand toward the shore.
What is the primary purpose of this passage？
A．To explain why sand piles up on the beaches.
B．To explain why men only prostrate in the sea.
C．To propose a new explanation of a phenomenon.
D．To refute a misconception.
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Why are some cabinet members worried about the motion？
A．The motion causes the relation between the party and big businesses more hostile.
B．The contract will be expired when new bids are opening to the contracts.
C．The government will use break clauses in agreement among operators.
D．The shadow chancellor is hostile to the party agreement and clauses.
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Why are people on the Miguel Street scared of Big Foot? 答案:He is strong and brooding.
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What do people fear the most and why What do people fear the most and why
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Why are coral reefs called the rainforests of the sea（）
A．Because they are home to a wide variety of sea life
B．Because they can protect our coasts from storms
C．Because they might supply natural medicines
D．Because they look like rainforests
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You need to photocopy some notes that are written on pages 14，15，27，31，32and34 of a pocketYou need to photocopy some notes that are written on pages 14，15，27，31，32and34 of a pocket notebook．Without damaging the book，how much will that cost at 5p per photocopy
