第1题:
Recent studies have shown that air inside many homes, office buildings, and schools is full of pollutants such as ().
A、chemicals
B、smoke
C、bacteria
D、perfume
第2题:
The notion of NP-completeness has provided a(66)mathematical definition for(67)intractability of NP problems. But this measure applies only to worst-case complexity. Being NP-complete does not(68)that a problem is intractable on the average case. Indeed, some NP-complete problems are "(69)on average", though some may not be. Levin initiated the study of average-case intractability, He showed that a bounded tiling problem under a simple distribution is average-case NP-complete. Since then, several additional average-case NP-complete problems have been shown within Levin's(70). This paper is intended to provide a comprehensive survey of average-case NP-complete problems that have been published so far, and the techniques of obtaining these results.
A.relaxed
B.rough
C.rigorous
D.feasible
第3题:
A. on the whole
B. on fire
C. on purpose
D. on the average
第4题:
第5题:
Any extra expense incurred in place of another expense which would have been allowable as general average shall ______ general average and so allowed without regard to the saving if any,to other interests,but only up to the amount of the general average expense avoided.
A.deem to be
B.deem being
C.be deemed to be
D.be deemed being
第6题:
The STUDENT_GRADES table has these columns:The registrar has asked for a report on the average grade point average (GPA) for students enrolled during semesters that end in the year 2000. Which statement accomplish this?()
A.
B.
C.
D.
E.
F.
第7题:
The offspring of the supertrees have proved to be genetically superior to those of the average trees.
第8题:
In developing a hospital database, it is determined that on the average, each patient will have 6 treatments during a hospital stay.The average length of a stay is three days.The hospital has 1000 beds.There are on the average 800 patients occupying beds each day.The relationship between PATIENT and TREATMENT is 1: M.The relationship between PATIENT and BED is 1:1, conditional.If treatment record occurrences are archived as soon as a patient is discarded from the hospital, how many occurrences of the TREATMENT records will be stored in the TREATMENT database file on the average?
A.6,000
B.4,800
C.18,000
D.1,600
第9题:
材料:
Following a general average incident,ship agents and surveyors play a significant role.A ship agent,in addition to the normal duties of port and husbandry agency,will assist the master in the aftermath of a general average incident to make a declaration which complies with the local law and custom of the port.
Once the average adjuster has confirmed that security has been obtained from all the interested parties,the agent is instructed by the ship owner to permit delivery of the cargo.If cargo has been discharged to lighten the vessel,or cargo has been transshipped to a final destination,the agent will be responsible for keeping full and complete records of all movements and expenditure attributable to the general average.
After any incident,a large number of surveyors representing various interests will descend on the vessel.Some of these surveyors will not be involved directly in the general average process.However,if it has become necessary to sacrifice or discharge a part of the cargo before arrival at the final destination stated on the bill of lading,the ship owner will appoint surveyors to report on the condition and quantity of cargo.
Such surveyors,usually called general average surveyors,will act in the interests of all the parties involved(and may also represent hull and machinery interests).If possible,the account representing expenditure incurred should be examined and approved by the general average surveyor before settlement.
问题:
Which of the following is NOT correct as to the general average surveyors ___________.
A.They may sometimes be involved into the examination and approval of general average expenditures
B.They may sometimes be involved into the examination and approval of general average sacrifices
C.They will act in the interests of all the parties involved
D.They will look at particularly the general average matters
What does this passage imply for the shipmasters when a general average incident occurred onboard ___________.A.He can rely on greatly the general average surveyors
B.He can rely on greatly the ship agent
C.He can rely on greatly the interested parties
D.He can rely on greatly other surveyors
The ship agent mentioned in the passage behaves ______.A.for the benefit of the cargo owner
B.for the benefit of the shipowner
C.for the benefit of the salvors
D.for the benefit of the interested parties other than the above
The security required by the owner of ship and provided by relevant interested parties in general average cases is for the purpose of _______.
① contributing to the losses and damages of general average nature;
② securing all the general average contributions;
③ Securing all the payment of Sue and Labour;
④ contributing to the losses and damages of particular average nature.
A.①③④
B.①②③
C.①②
D.②③④
请帮忙给出每个问题的正确答案和分析,谢谢!
第10题: