When the opponents of the system shout about the lack of parental choice,they（）the fact that in the old system there was no choice either for most parents.

According to the CDD's Chester, nobody can take Microsoft seriously when __

[A] it talks about competitive behavior

[B] it comes into a room

[C] it doesn't threat to privacy

[D] it doesn't have any opponents

s tip was seventeenth-century underworld slang for “give” ———as in “Tip me your money or your life. ” Opponents of tipping will probably prefer this explanation, since it suggests the practice as originally a form. of robbery. A less reputable, but nonetheless charming explanation is that in Renaissance(文艺复兴) coffeehouses, boxes were set near the door, into which customers could drop money: These boxes, according to the story, bore the legend “To Insure Promptitude, ” which was ultimately shortened to TIP. Whether it was a serving woman or a boss with his or her eye on depressing wages who first thought up the idea, the story does not say.

Tipping became common in England by the middle of the eighteenth century. Because it is ill-suited to a country without an established servant class, it did not catch on in America until after the Civil War, when former slaveholders suddenly found themselves having to pay the help and when new-rich industrialists adopted the European fashion. By the turn of the century, we had made the custom our own, and the American “big tipper ” was on his way.

Today, although the lines between bribery(贿赂) and thanks for services remain as vague as ever, tipping has become universal, not least because, in an increasingly uncertain economy, it provides the growing service class with income that is at least as reliable as wages and that is less subject to tax review.

Not surprisingly, government officials as among the few die-hards who still question the tipping system. They have a point too. Tippers ’ International Association estimates that U.S. workers get about $5 billion a year in tips.

In the seventeenth century, tip was probably a word used by_____.

A.lawbreakers

B.customers

C.waitresses

D.coffeehouse bosses

Tipping did not become popular in U.S. until after the Civil War because______.A.the country was free of a servant class

B.former slaveholders did not want to pay the help

C.northern industrialists refused to adopt the European fashion

D.tipping was contradictory to the American custom

Tipping is universally accepted mainly because_______.A.it is an easy way to make money

B.it ensures people a good and prompt service

C.it enables the service class to be free from taxes

D.it supplies the service class with a sort of reliable income

Which of the following words can best describe the government officials ’ attitudes towards the tipping system？A.Positive.

B.Negative.

C.Doubtful.

D.Indifferent.

The passage is about_______.A.the origin of tipping

B.the practice of tipping in U.S

C.the popularity of tipping

D.the shaping of the tipping system

请帮忙给出每个问题的正确答案和分析，谢谢！

Which statement about the inert gas system is TRUE ________．

A.Boiler soot blowers should never be used when the IG system is operating

B.The boiler will produce the best quality of flue gas for the IG system when the boiler load is very light

C.The boiler will produce the most quantity of flue gas for the IG system when the boiler load is very light

D.Flue gas with excessive oxygen content is de-oxygenated in the scrubber

d file = ‘+DATA/PROD/orapwprod entries = 5 ignorecase = N format = 12’Which two statements are true about the password file？（）

A. It records the usernames and passwords of users when granted the DBA role.

B. It contains the usernames and passwords of users for whom auditing is enabled.

C. Is used by Oracle to authenticate users for remote database administration.

D. It records the usernames and passwords of all users when they are added to the OSDBA or OSOPER operating system groups.

E. It supports the SYSBACKUP, SYSDG, and SYSKM system privileges.

A. It must include a root password.

B. It is rollback file number 50, and you can recover it by issuing rollback 50.

C. It is created by issuing request system configuration rescue save.

D. It is updated automatically when you commit.

A. A system log message is generated, confirming the transfer attempt.

B. The destination filename format can be altered by configuration.

C. The frequency the system archives the configuration cannot be changed.

D. An archive log is created to track transfer attempts, both failed and successful.

sub-contractors, the supervisor mostly concerns about （73）.

（73）

A．Amount of subcontract

B．qualifications and abilities of sub-contractors

C．responsibilities and obligations of sub-contractors

D．the contents of the subcontract

A. A system log message is generated, confirmed the transfer attempt

B. The destination filename format can be altered by configuration

C. The frequency the system archives the configuration cannot be changed

D. An archive log is created to track transfer attempts both failed and successfull

Opponents suggest that the pension system should be good for

A．the better-off.

B．financial institutions.

C．ordinary people.

D．government.

A. It utilizes the OS file system cache.

B. A traditional NFS mount is not required when using Direct NFS.

C. Oracle Disk Manager can manage NFS on its own, without using the operating kernel NFS driver.

D. Direct NFS is available only in UNIX platforms.

E. Direct NFS can load-balance I/O traffic across multiple network adapters.