Victor currently produces nuts and bolts at point a in the figure. Victor’s marginal cost of producing an additional nut is （）.

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• A swift current occurring in a narrow passage connecting two large bodies of water which is produced by the continuously changing difference in height of tide at the two ends of the passage is called a(n)（）.

  A . hydraulic current B . rectilinear current C . rotary current D . harmonic current

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• What produces a compiler error？（）  

  A .  class A { public A（int x） {} } B .  class A {} class B extends A { B（） {} } C .  class A { A（） {} } class B { public B（） {} } D .  class Z { public Z（int） {} } class A extends Z {}

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• A swift current occurring in a narrow passage connecting two large bodies of water，which is produced by the continuously changing difference in height of tide at the two ends of the passage，is called a（）.

  A . hydraulic current B . rectilinear current C . rotary current D . harmonic current

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• The （） is a crystal which, under pressure, produces an electric current which varies with the pressure.

  A . alternator B . glass thermometer C . burdon tube D . piezoelectric pressure transducer

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• The starting current of an a-cmotor is （） the rated current.

  A . the same as B . much larger than C . less than D . equal

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• 生产者（producers）

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• Cumulonimbus clouds can produce（）.

  A . dense fog and high humidity B . gusty winds，thunder，rain or hail，and lightning C . clear skies with the approach of a cold front D . a rapid drop in barometric pressure followed by darkne

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• 生产者剩余（Producer surplus）

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• Which of the following components are used to convert alternating current produced in the generator windings to direct current?（）

  A . Armature and equalizer B . Commutator and brushes C . Rotor and interpoles D . Field and exciter

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• 美国心理学家维克多•弗罗姆(Victor   Vroom)1964年提出了期望理论(expectancy   theory)。弗罗姆认为，员工的动机依赖于三个关键变量（）

  A . A、员工认为其是否能达到某种结果、得到某种奖酬的可能性 B . B、绩效与报酬之间的关系 C . C、工报酬是否对员工有价值 D . D、员工认为获得机会的可能性

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• 产地检疫（Produced-areaQuarantine）

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• 3 Victor gets eight hours of sleep a night.

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• How does Victor look?

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• To produce and enjoy more of one thing, we must _____ resources away from producing something else.

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• It unique producing methods.

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• ____ are chemical messengers in the transmission of impulses that trigger the receptors on the next nerve cell’s dendrites to produce a new electrical current.

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• A major concern for the viability of current alternative fuels is the _____ needed to produce the required materials.

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• —Victor, your radio is too loud.Your partner is writing her composition

  —Sorry, Miss Gao.I’ll turn it _____a little A.on B.up C.off D.down

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• 分布式执行框架采用Producer－Consumer模型。（)

  是 否

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• Victor apologized for ______ to inform. me of the change in the plan.

  A．his being not able B．him not to be able C．his not being able D．him to be not able

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• This tree produces rubber.（英译中)

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• produce的名词

  produce名词 产地检疫(Produced－areaQuarantine)(名词解释)

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• Our plant produced small farm tools in 1959,but it hasn´t produced them（）.

  A、ever before B、two years ago C、last year D、ever since

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• produce（）

  A．创作 B．战役；活动 C．混凝土 D．偶然地

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