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A subquery can be used to （）.
A . Create groups of data
B . Sort data in a specific order
C . Convert data to a different format
D . Retrieve data based on an unknown conditio
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A vessel shall be deemed to be overtaking when she can see at night（）.
A . only the sternlight of the vessel
B . a sidelight and one masthead light of the vessel
C . only a sidelight of the vessel
D . any lights except the masthead lights of the vessel
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Which object privileges can be granted on a view? （）
A . none
B . DELETE, INSERT,SELECT
C . ALTER, DELETE, INSERT, SELECT
D . DELETE, INSERT, SELECT, UPDATE
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A subquery can be used to（）.
A . create groups of data
B . sort data in a specific order
C . convert data to a different format
D . retrieve data based on an unknown conditio
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A dark exhaust from a running diesel engine can be caused by （）
A . late ignition
B . water in the fuel
C . high compression temperature
D . starting valve stuck ope
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How can a directory be excluded from a mksysb backup（）
A . Put an entry in the /etc/exclude.rootvg file.
B . Put an entry in the /etc/mksysb.exclude file.
C . Remove the directory’s entry from the mksysb /image.data file.
D . Remove the directory’s entry from the /var/adm/ras/bosinst.data file.
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A RequestDispatcher can be obtained from which two objects？ （）
A . ServletConfig
B . ServletContext
C . HttpServletRequest
D . HttpServletResponse
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A SART can be fixed on（）.
A . a mother ship
B . a lifeboat
C . a life craft
D . all of A,B,C
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Access to a hold can be obtained throuth（）.
A . forcastle
B . tweendeck
C . hatches
D . peak tank
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Information,in its most restricted technical sense,is a seque of symbols that can be interpreted as a message.ingormation can be recorded as signs,or transmitted as（）
A . A、symbols
B . B、message
C . C、signals
D . D、wave
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Noise in a refrigeration compressor can be caused by （）.
A . worn bearings and piston pins
B . slugging due to flooding back
C . too much oil in circulation
D . All of the above
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A fire can be extinguished by removing （）.
A . the heat
B . the fuel
C . the oxygen
D . any of the above
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A product can be ______.
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The subject of a memo can be :
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Which of the following can be a member of a band?
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Being an airline pilot can be a _________ job, but it must be a fun one.
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OTC drugs can only be sold at a pharmacy.
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A vacancy can be created by .
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A good first impression can be a powerful force for your career.
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According to Mr. Heath and Mr. Potter, consumerism can be traced back to [A] the imposition of overbearing companies. [B] the very nature of arms race. [C] the ignorance of some stupid workers. [D] the desire to keep up with the Jones.
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How can a replacement voucher be obtained？
A．By telephoning the number provided
B．By faxing the request to (813) 502-3461
C．By making an appointment for repair
D．By contacting the retailer
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A strong wind shear can be expected？
A、On the low pressure side of a 100 knot jetstream core
B、Where the horizontal wind shear is 15 knot, in a distance equal to 2.5(longitude
C、If the 5(C isotherms are spaced 100NM or closer together
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If the assembly line is redesigned, a smooth work flow can be achieved and time and energy can be saved.翻译
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（1) Life can be tough for immigrants in America. A...
(1) Life can be tough for immigrants in America. As a Romanian bank clerk in Atlanta puts it, to find a good job “you have to be like a wolf in the forest – able to smell out the best meat.” And if you can’t find work, don’t expect the taxpayer to bail you out. Unlike in some European countries, it is extremely hard for an able-bodied immigrant to live off the state. A law passed in 1996 explicitly bars most immigrants, even those with legal status, from receiving almost any federal benefits. (2) That is one reason why America absorbs immigrants better than any other rich countries, according to a new study by the University of California. The researchers sought to measure the effect of immigration on the native-born in 20 rich countries, taking into account differences in skills between immigrants and natives, imperfect labor markets and the size of the welfare state in each country. (3) Their results offer ammunition for fans of more open borders. In 19 out of 20 countries, the authors calculated that shutting the doors entirely to foreign workers would make the native-born worse off. Never mind what it would do to the immigrants themselves, who benefit far more than anyone else from being allowed to cross borders to find work. (4) The study also suggests that most countries could handle more immigration than they currently allow. In America, a one-percentage point increase in the proportion of immigrants in the population made the native-born 0.05% better off. The opposite was true in some countries with generous or ill-designed welfare states, however. A one-point rise in immigration made the native-born slightly worse off in Austria, Belgium, Germany, Luxembourg, the Netherlands, Sweden and Switzerland. In Belgium, immigrants who lose jobs can receive almost two-thirds of their most recent wage in state benefits, which must make the hunt for a new job less urgent. (5) None of these effects was large, but the study undermines the claim that immigrants steal jobs from native or drag down their wages. Many immigrants take jobs that Americans do not want, the study finds. This “smooths” the labor market and ultimately creates more jobs for locals. Native-owned grocery stores do better business because there are immigrants to pick the fruit they sell. Indian computer scientists help American software firms expand. A previous study found that because immigrants typically earn less than locals with similar skills, they boost corporate profits, prompting companies to grow and hire more locals. 1. Increase in immigration in Austria fails to improve locals’ life mainly because of ________.
A、low wages for locals
B、imperfect labor markets
C、the design of the welfare system
D、inadequate skills of immigrants
