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[主观题]

Phloem contents are transported from .

A、A sink to a source

B、An area of high-pressure potential to an area of low- pressure potential

C、An area of high -water potential to an area of low- water potential

D、An area of low sugar concentration to an area of high sugar concentration

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更多“Phloem contents are transported from .”相关的问题

第1题

WhichtwostatementsaretrueabouttheOracleEnterpriseManager(OEM)?()

A.OEMcandomanagementandmonitoringacrossmultipleWLSDomains

B.OEisaunifiedsolutionformanagementandmonitoringacrossentirearchitecture-WebTier,AppTier&DBTier

C.OEMisfocusedsolelyonOraclesolutions,cannotmanage3rdpartyproducts

D.OEMincludestoolstoconfiguretheoperatingsystem

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第2题

You are the network administrator for Ezonexam.

You plan to upgrade 550 computers from Windows 95 to Windows 2000 Professional. You create an Unattend.txt file by using Setup Manager. You copy the file to the network share that will be used to install Windows 2000 Professional. You start the installation on a test computer by using a network shared folder and an answer file. When the installation is complete, you realize that the upgraded computers are not utilizing their entire hard disks.

You want to ensure that the unattended installation utilizes the entire hard drive on all computers.

What should you do? (Each correct answer presents part of the solution. Choose two)

A.Add an [Unattended] section to Unattend.txt, and set the File System parameter to Convert NTFS.

B.Rename Unattend.txt to Cmdlines.txt and copy it to the \$OEM$ subdirectory.

C.Add a [GUIRunOnce] section to answer file, and add an entry for the Unattend.txt file.

D.Create a \$OEM$\S$ folder on the hard disk of the test computer, and copy Unattend.txt to the folder.

E.Add an [Unattended] section to Unattend.txt, and set the Extend OEM Partition to 1.

F.Add an [Unattended] section to Unattend.txt, and set the Extend OEM Partition parameter to 999.

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第3题

YouworkinacompanywhichusesSQLServer2008.Youaretheadministratorofthecompanydatabase.NowyouareinchargeofaSQLServer2008instance.ASQLServerAgentjobisfailing.Youfindthatthejobhistoryinformationisincompleteandseemstobetruncatedafteryoureviewit.Allinformationproducedbyajobmustbeavailableforviewing.Sowhatactionshouldyouperformtoachievethisgoal?()

A.YoushouldenablenotificationstotheWindowsapplicationeventlogwhenthejobcompletes.

B.YoushouldenablewriteOEMfile

C.Youshouldenablealljobsteps,makingthemsendtheoutputtoafile

D.YoushouldincludeexecutiontracemessagesintheSQLAgentErrorlog

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第4题

You are the network administrator for Ezonexam. You are planning to upgrade Windows NT Server 4.0 computers to Windows 2000 Server. You want to perform. the upgrades by means of a distribution folder. You want to install a custom application as part of the upgrade.

You need to include the necessary commands so that the custom application is automatically installed as part of the upgrade process.

What should you do?

A.Create a command file named Cmdlines.txt to install the application. Copy the Cmdlines.txt file to the subfolder named $OEM$ under the i386 folder.

B.Create a command file named Unattend.txt to install the application. Copy the Unattend.txt file to the subfolder $OEM$\textmode under the i386 folder.

C.Create a subfolder named $OEM$\$C\Applications under the i386 folder. Copy the application files to that subfolder.

D.Create a second network shared folder named $OEM$. Copy the application to that share point.

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第5题

You are the network administrator for Ezonexam.

You are planning to upgrade Windows NT Server 4.0 computers to Windows 2000 Server. You want to perform. the upgrades by means of a distribution folder. You need to install a custom application as part of the upgrade.

You need to include the commands necessary so that the custom application is installed as part of the upgrade process.

What should you do? (Each correct answer presents part of the solution. Choose two)

A.Create a command file named Unattend.txt to install the application.

B.Create a command file named Cmdlines.txt to install the application.

C.Copy the command file to the \$OEM\$C\ subfolder under the i386 folder.

D.Copy the command file to the subfolder named \$OEM$ under the i386 folder.

E.Copy the command file to the subfolder named \$OEM$\textmode under the i386 folder.

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第6题

A selection from a poem

Wherefore feed and clothe and save Form. the cradle to the grave those ungrateful drones who would Drain your sweat nay, drink your blood? Wherefore, Bees of England, forge many a weapon, chain, and scourge that these stingless drones may spoil the forced produce of your tail?

Questions:

1. These lines are taken from a poem entitled ___written by ___.

2. The rhyme scheme in the selection of the poem is ____.

3. What idea does the quotation express?

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第7题

The questions in this group are based on the content of a passage. After reading the passage, choose the best answer to each question. Answer all questions following the passage on the basis of what is stated or implied in the passage.

Although hard statistics are difficult to come by, there is substantial anecdotal evidence that use of performance-enhancing drugs, or doping, is rampant in professional sports. Of perhaps greater significance to society are the estimated 1.5 million amateur athletes who use steroids, either to improve their appearance or to emulate the performance of their favorite professional athletes. This chemical epidemic is a pernicious threat to both the nation's health and our collective sense of "fair play."

Nonprescription anabolic steroids have been illegal in the United States since 1991, and most professional sports leagues have banned them since the 1980s. These bans are partly a matter of fairness--a talented athlete trained to the peak of her ability simply cannot compete with an equivalent athlete using steroids--but also based on issues of health. Anabolic androgenic steroids ("anabolic" means that they build tissues; "androgenic" means that they increase masculine traits) have been linked to liver damage, kidney tumors, high blood pressure, balding, and acne. They function by increasing the body's level of testosterone, the primary male sex hormone. In men, this dramatic increase in testosterone can lead to the shrinking of testicles, infertility, and the development of breasts; in women, it can lead to the growth of facial hair and permanent damage to the reproductive system. Steroids have also been linked to a range of psychological problems, including depression and psychotic rage.

The punishments for getting caught using steroids are severe, and the serious health consequences are well documented. Despite this, millions of professional and amateur athletes continue to use performance-enhancing drugs. Why is this?

One clear pattern is that many athletes will do whatever it takes to get an edge on the competition. Since the 1950s, Olympic athletes have played a cat-and-mouse game with Olympic Committee officials to get away with doping, because the drugs really do work. Athletes who dope are simply stronger and faster than their competitors who play fair. Professional athletes in football and baseball have found that steroids and human growth hormone can give them the edge to score that extra touch-down or home run, and in the modern sports market, those results can translate into millions of dollars in salary. For the millions of less talented athletes in gyms and playing fields across the country, drugs seem like the only way to approach the abilities of their heroes in professional sports.

The other clear pattern, unfortunately, is that it has been all too easy for abusers to get away with it. Steroid abuse is often regarded as a "victimless crime." One of the favored ways to trick the testers is to use "designer" steroids. There are thousands of permutations of testosterone, such as THG, that can be produced in a lab. Chemists have discovered that they can create new drugs that produce androgenic effects but do not set off the standard doping tests. Other methods have been to use the steroids but stop a few weeks before testing, to use other chemicals to mask the traces of steroids, or to switch in a "clean" sample of urine at the testing site. Other athletes use steroid precursors, such as androstene-dione, that have androgenic effects similar to those of steroids but are not illegal because they are not technically steroids. The sad fact is that unless the government and professional sports organizations are willing to get tough on the steroid problem, the use of performance-enhancing dugs in sports is not going to end.

What appears to be the primary purpose of this passage?

A.To educate readers about the health threats involved in the use of performance-enhancing drugs

B.To analyze the ways in which professional athletes have eluded attempts to screen for performance-enhancing drugs

C.To discuss the reasons why performance-enhancing drugs are a dangerous and persistent problem for society

D.To complain about the inadequate efforts by government and professional sports organizations to eliminate the problem of performance-enhancing drugs

E.To argue that athletes, both professional and amateur, should not use performance-enhancing drugs on the grounds that they are both dangerous and unfair

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第8题

"The fog comes/On little cat feet" is quoted from Fog, written by______, a typical imagist poem.

A.Hilda Doolittle

B.Carl Sandburg

C.Ezra Pound

D.William Carlos Williams

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第9题

Artificial intelligence (AI) ,an interdisciplinary field, is usually regarded as a branch of computer science, dealing with models and systems for the performance of functions generally associated with human intelligence, such as(71)and learning.In AI, knowledge-based system is an information(72)system that provides for solving problems in a particular domain or application area by drawing inferences from a knowledge base. Moreover, some knowledge-based systems have learning capabilities. Expert system (ES) indicates the knowledge-based system that provides for solving problems in a particular domain or application area by drawing inferences from a knowledge base developed from human(73). Some expert systems are able to(74)their knowledge base and develop new inference rules based on their experience with previous problems. The term "expert system" is sometimes used(75)with "knowledge-based system", but should be taken to emphasize expert knowledge.

A.inferring

B.reasoning

C.deriving

D.proving

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第10题

Task 2

Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45.

Walt Whitman is often called the poet of American democracy(民主). He lived during the American Civil War, and he admired president Abraham Lincoln very much.

Whitman was the first American poet who wrote about true equality among all other people. In a poem called Song of Myself he compared himself to all other people, and he found no difference. He wrote,

"...every atom belonging to me...belongs to you".

In the same poem Whitman spoke up for women. He wrote,

"The Female equally with the Male I sing".

He also wrote,

"In the faces of men and women I see God".

And "A great city is that which has the greatest men and women".

Whitman understood war and the results of war. He worked in a hospital, taking care of wounded men. In a description of northern soldiers who had returned from prisons in the south he wrote, "The sight is worse than any sight of battle fields or any collection of the wounded, even the bloodiest". In Whitman's words, "The real war will never get in the books."

Whitman was the first important American poet to write about ordinary people with ordinary language.

Through Whitman's lines, we can see ______.

A.he wanted to sing a song for himself

B.he was very proud of himself

C.his strong feeling towards the true equality among all people

D.it is God that created man

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