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No damage of any kind（）aids to navigation or navigation facilities.
A . should be done to
B . should not be done to
C . must be done with
D . must not be done with
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Nothing in these Rules shall（）any vessel，or the owner，master or crew thereof，from the consequences of any precaution which may be required by the ordinary practice of seaman，or by the special circumstances of the case.
A . exonerate
B . exhaust
C . exercise
D . examine
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In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
A . MF/HF
B . SART
C . EPIRB
D . any of A, B, C
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Banks have no liability for any delay or loss caused by postal or telex failure.
A . 正确
B . 错误
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Any vessel shall，if the circumstances of the case admit，avoid（）in a narrow channel.
A . anchor
B . to anchor
C . anchoring
D . to anchoring
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In case of your steering gear failed，（）should be exhibited in shapes or lights.
A . not under command
B . restricted in her ability to manoeuvre
C . restrained by her draught
D . underway
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（） system is arranged to ensure that water can be drawn from any tank or the sea and discharged to any other tank or the sea as required to trim the vessel.
A . The domestic water
B . Bilge water
C . Oil transfer
D . The ballast
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（）during the voyage any case or suspected case of plague，cholera，yellow fever，smallpox，typhus or relapsing fever?
A . Has there been
B . Have there been
C . Has there
D . Have there
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Oil Pollution Regulations require any transfer or discharge of oil or oily mixtures to be recorded in the （）
A . bridge log
B . Master’s log
C . engine room log
D . oil record book
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In case of any loss or misfortune it is the duty of（）to take such measures as may be reasonable for the purpose of averting or minimizing a loss which would be recoverable under this insurance.
A . the Assured and their servants and agents
B . the Assurer and his servants and agents
C . the Charterer and his servants and agents
D . the Operator and his servants and agent
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In case of your steering gear failed,（）should be exhibited in shapes or lights.
A . not under command
B . restricted in her ability
C . restrained by her draught
D . underway
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I don’t know（）there’s any shortage or not.
A . if
B . how
C . why
D . unle
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A pumproom is suspected of accumulating gases after a ventilation machinery breakdown. Where should the combustible gas indicator case be placed when testing the pumproom atmosphere for combustible gases? （）
A . In the lower level of the pumproom
B . In the middle level of the pumproom
C . In the upper level of the pumproom
D . On the deck outside the pumproom
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（）any sick person on board now apart from the above-mentioned cases?
A . Have
B . Has
C . Is there
D . Are there
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Any alteration of course and／or speed to avoid collision shall，if the circumstances of the case admit，（）to another vessel observing visually or by radar.
A . be large enough to be readily apparent
B . be a succession of small alterations
C . be with due regard to the power and speed of the vessel
D . leave sufficient room for the other vessel to take actio
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Any action taken to avoid collision shall，if the circumstances of the case admit，（）.
A、 be positive
B、be positive and made in ample time
C、 be positive, made in ample time and with due regard to the observance of good seamanship
D、 be positive, made in ample time, with due regard to the observance of good seamanship and avoiding complying with local regulations
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The place did not appear to be popular, for it was completely deserted, and in any case ________ to traffic.
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None of our food products contain any__ flavoring or colouring.
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The police questioned some suspects, but they all denied any _____ in last night's murder.
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The diagnostic aids are indispensable in any case for a physician to diagnose a disease.
A．Right
B．Wrong
C．Not mentioned
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A patent is an exclusive right given to an inventor for his or her invention. In other words, a patent is a monopoly right given to the inventor for the invention. A patent confers on the inventor the right to price and to sell the invention in any way he or she desires, in the United States, patents are granted by the Patent Office for 17 years. Although economists generally condemn monopoly as a form. of market organization since monopoly imposes costs on the economy, patents present a more subtle case for monopoly theory. Specifically, can patent monopolies be justified？
In general, economists complain about the costs of monopoly because they believe that the same industry could be organized competitively. A patent monopoly grant for 17 years presents a different problem. That is, the purpose of the patent system is to encourage invention. The issue is not monopoly versus competition but, more fundamentally, invention versus no invention. Is the world better off with the invention, even though it is monopolized for 17 years？ In other words, what are the costs and benefits of a patent？
Consider the simple case of a new consumer product with a positive demand, such as a camera utilizing a new exposure process. The costs of the patent monopoly are simply the deadweight costs of monopoly measured by the lost consumers' surplus from the 17-year patent monopoly. This cost must be assessed carefully in the context of an invention, however. What are the benefits of the patent system？ First, there is the increase in consumer well-being brought about immediately by a desirable invention. In 17 years, the patent monopoly ends, and a second source of benefits arises: The price of cameras will fall to a competitive level, and consumers will reap the benefits of the camera at a lower price. In sum, theory of monopoly helps us to assess the costs and benefits of the patent. One can quibble about patent monopolies, arguing, for example, that they are granted for too long a time.
In the end, the patent system creates goods and services and technologies that did not previously exist. In this respect it is a valuable System for the economy. The patent system also underscores the importance of property rights to ideas as a source of economic growth and progress.
The first paragraph mainly______.
A．focuses on business monopoly
B．tells us about the patent system in America
C．discusses a special form. of market organization
D．defines what a patent is and its function
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下面程序段执行结果为 x=Int（Rnd（)+3) Select Case x Case 5 Print "excellent" Ca
下面程序段执行结果为 x=Int(Rnd()+3) Select Case x Case 5 Print "excellent" Case 4 Print "good" Case 3 Print"pass" Case Else Print"fail" End Select
A．excellent
B．good
C．pass
D．fail
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In case you have any enquires concerning the above arrangements.以下不属于句中“in case”的含义的是（）
A．假使
B．万一
C．在这种情况下
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根据下列语句表程序画出其对应的梯形图 0 LD X000 13 OR Y001 1 OR Y000 14 MPS 2 ANI X001 15 OUT T0 3 ANI X002 K30 4 ANI Y001 16 MRD 5 OUT Y000 17 ANI T0 6 LD X001 18 ANI Y002 7 OR Y001 19 OUT Y003 8 ANI X000 20 MPP 9 ANI X002 21 AND T0 10 ANI Y000 22 ANI Y003 11 OUT Y001 23 OUT Y002 12 LD Y000 24 END
