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The locking pin that joins the parts of a detachable link is held in position by（）.
A . a tack weld
B . the self-locking characteristics of its taper
C . a cotter pin
D . a lead plug
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Wide Area Network (WAN) is a computer network that covers a broad areA. Which statement is correct for wide-area network (WAN)?（）
A . Limited in a single building, a group of buildings, or even a single room
B . Crosses metropolitan, regional, or national boundaries
C . Encompasses an entire city or metropolitan area and connects multiple local-area networks (LANs)
D . Connects client devices wireless protocol
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The GMDSS is a world-wide communication network combining（）with（）.
A . satellite /terrestrial system
B . INMAARSAT/COSPAS-SARSAT
C . SART / EPIRB
D . geostationary/polar-orbiting satellite
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A-frames and cylinder block is held together by （） to form a rigid structure.
A . connecting rods
B . piston rods
C . tie rods
D . jack-bolt
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A （ ）is a software that provides a method of communication between two electronic devices over the World Wide Web.
A . router
B . cober
C . J2EE
D . web service
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A hand held instrument used to measure distances between objects and the ship is a（）.
A . vernier
B . psychrometer
C . hygrometer
D . stadimeter
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A vessel not using a traffic separation scheme shall avoid it by as wide a（）as is practicable.
A . margin
B . legend
C . legion
D . maide
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A tug is “in irons” when held in a fixed position by（）
A . the weight of its tow，its being anchored，or grounded
B . the weight of its towing hawser on the bottom
C . an adverse current
D . lack of power or an engine breakdow
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The complete assembly of bedplate, A-frames and cylinder block is held together by （） to form a rigid structure.
A . tap-bolts
B . jack-bolts
C . tie rods
D . fitted rod
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A celebration is held for the boy at the age when he is considered to have reached.
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Which one of the following is a correct statement, all else held constant?
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A great celebration is going to be held__________ the distinguished writer．
A.in spite of
B.in honor of
C.in favor of
D.in the name of
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A-frames and cylinder block is held together by（）to form a rigid structure
A．connecting rods
B．piston rods
C．tie rods
D．jack-bolt
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The chairman insists that there__________ a meeting to be held within the shortest pos-sible time．
A.is
B.will be
C.was
D.be
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In spite of the wide range of reading material specially written or _____ for language learning purposes, there is yet no systematic program for the reading skills（）
A．adapted
B．acknowledged
C．assembled
D．appointed
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______ there is a will, there is a way.
A．Which
B．That
C．What
D．Where
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Plastics is a kind of______ which is widely used in industry nowadays.
A．mass
B．substance
C．matter
D．material
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Society ____ people with widely different abilities.A、is made up of
B、is made up from
C、makes up from
D、makes up of
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At three thousand feet,wide plains begin to appear,and there is never a moment when some distant mountain is not____.
A．on view
B．at a glance
C．on the scene
D．in sight
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Why does the author mention "there is wide-spread uneasiness and confusion"（Para. 1)？_____
Why does the author mention "there is wide-spread uneasiness and confusion"(Para. 1)？______
A．The abundant food supply is not expected to last
B．Britain is importing less food
C．Despite the abundance, food prices keep rising
D．Britain will cut back on its production of food
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听力原文：Woman：Yes，the year has flown and it is that time once again!The Annual Dinner and I~nce will be held in the Dynasty Suite at the Shangri La Hotel on 17 December from 7:30 P．m untillate．As usual there will be a 10-course Chinese dinner，and special requirements can，of course，be catered for．And Carmen Fashions will be entertaining us with a fashion show as we eat．
With lucky draws，spot prizes and after-dinner entertainment and dancing，it seems to be a night not to be missed．This company-sponsored dinner will cost you only$50 each-and it is the same price for partners too!If it is anything like previous years functions，you can be assured of a good time-so get your registration foilils from Reception or Personnel and book now!Mary Martin has the honor of being in charge of arrangements this year，so she can be contacted in case of any queries．
？You will hear how to get ready for the annual dinner and dance．
？As you listen，for questions 1-12，complete the notes．using up to three words or a number
？After you have listened once，replay the recording．
The year has flown and it is that(1) _______ !
The Annual Dinner and Dance will be held on(2) _______ from (3) _______ untillate．
As usual there will be a (4) _______ Chinese dinner，including special requirements can，of course，(5) _______ ．
And Carmen Fashions will(6) _______ us with a fashion show as we eat．
With lucky draws(7) _______ and after-dinner entertainment and dancing，it looks like being a night not to (8) _______ ．
This company-sponsored dinner will cost you only(9) _______ each．
If it is anything like previous years'functions you can(10) _______ a good time，so get your(11) _______ from Reception or Personnel and book now!
Mary Martin has the honor of being (12) _______ arrangements this year，so she can be contacted in case of any queries．
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For sometime past it has been widely accepted that babies--and other creatures--learn to do things because certain acts lead to "rewards"; and there is no reason to doubt that this is true. But it used also to be widely believed that effective rewards, at least in the early stages, had to be directly related to such basic physiological "drives" as thirst or hunger. In other words, a baby would learn if he got food or drink or some sort of physical comfort, no otherwise.
It is now clear that this is not so. Babies will learn to behave in ways that produce re suits in the world with no reward except the successful outcome.
Papousek began his studies by using milk in normal way to "reward' the babies and so teach them to carry out some simple movements, such as turning the head to one side or the other. Then he noticed that a baby who had enough to drink would refuse the milk but would still go on making the learned response with clear signs of pleasure. So he began to study the children's responses in situations where no milk was provided. He quickly found that children as young as four months would learn to turn their heads to right or left if the movement "switched on' a display of lights and indeed that they were capable of learning quite complex turns to bring about this result, for instance, two left or two right, or even to make as many as three turns to one side.
Papousek's light display was placed directly in front of the babies and he made the interesting observation that sometimes they would not turn back to watch the lights closely al though they would "smile and bubble when the display came on. Papousek concluded that it was not primarily the sight of the lights which pleased them, it was the success they were achieving in solving the problem, in mastering the skill, and that there exists a fundamental human urge to make sense of the world and bring it under intentional control.
According to the author, babies learn to do things which ______.
A．will satisfy their curiosity
B．will meet their physical needs
C．are directly related to pleasure
D．will bring them a feeling of success
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11、针对下面句子关于style的改写，哪个是正确的？ There are some studies that have concluded that bamboo could be used by builders more widely than it is now as a construction material.
A.Recent studies have shown that bamboo is a suitable construction material, suggesting its wider use in the building industry.B.According to a number of recent studies, it is feasible to increase the use of bamboo in the construction industry.C.Some studies have concluded that bamboo could be more widely used than it is now as a construction material.D.Bamboo could be used by builders more widely than it is now as a co
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English is widely used in the world. It has become a universal （）.
A．phenomena
B．standards
C．lingua franca
D．models
