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The three basic parts of any eductor are the nozzle, the suction chamber, and the （）.
A . injector
B . compressor
C . diffuser
D . sipho
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The basic function of the centrifugal pump impeller is to （）.
A . directly increase the pressure of the liquid being pumped
B . directly increase the velocity of the liquid being pumped
C . convert the potential energy of the liquid to kinetic energy
D . separate air from the liquid being pumped
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What is the basic concept of GMDSS? （）
A . Search and rescue authorities ashore can be alerted to a distress situation
B . Shipping in the immediate vicinity of a ship in distress will be rapidly alerted
C . Shoreside authorities and vessels can assist in a coordinated SAR operation with minimum delay
D . All of the above
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The three basic elements necessary for any fire are （）.
A . heat, gas, and flames
B . fuel, heat, and oxygen
C . heat, nitrogen, and fuel
D . fuel oil, nitrogen, and oxyge
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What is the basic principle of the magnetic compass?（）
A . Magnetic materials of the same polarity repel each other and those of opposite polarity attract
B . The Earth's magnetic lines of force are parallel to the surface of the Earth
C . Magnetic meridians connect points of equal magnetic variation
D . The compass needle(s) will，when properly compensated，lie parallel to the isogonic lines of the Earth
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Basically the bedplate consists of two （）, which run the length of the engine.
A . longitudinal girders
B . transverse girders
C . fore girders
D . aft girder
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The report listed as new basics（）
A . English,mathematics,computer,social studies
B . science,mathematics,social studies,foreign language
C . English,science,social studies,mathematics,computer
D . English,science,computer,social studie
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Which is not the three basic principles of the Consititution?( )
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The Nova computer has two models, the Basic and the Basic Plus.
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what are the basic principles that the top students master?
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What followings are include the three basic principles of the Consititution?
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Which of the following amino acids are belonged to the basic amino acids?
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The basic knowledge of all of the test？
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Which of the following is the tip for the basic reading skill – skimming?
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The basic principles of the United States Constitution contains:
A、Separation of Powers.
B、Checks and Balances.
C、Individual Rights.
D、Federalism.
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Which of the following is a combination of the seven basic emotions?
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What is not the basic planning principle?
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The basic Accouting equation is: .
A、Assets=Liabilities+ Owner's equity+ Net incomes
B、Assets=Owner's equity
C、Assets=Liabilities
D、Assets=Liabilities+Owner's equity
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Explain the following basic concepts：Locating of the workpiece
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What is the basic tone of the writer judging from the article？
A．Critical
B．Negative
C．Positive
D．Objective
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The little girl is ignorant____the basic rules of English grammar.
A．for
B．of
C．with
D．against
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The girl will learn the basic movements of Chinese kungfu.（）
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Which of the following basic instructions does the macro assembly language contain （）
A．Symbolic instructions
B．Directives
C．Macro
D．Operators
此题为多项选择题。
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The basic elements of financial assets include（）
A．Sell person
B．Price of financial assets
C．Deadline
D．Income from financial assets
E．List currency
F．Investor
此题为多项选择题。
