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You started a long transaction. Before committing， you executed a query on one of the tables currently being modified. You received the following error： ORA-01555： snapshot too old How would you prevent such an error in the future？（）
A . guarantee undo retention
B . add one more redo log group
C . size the redo log files appropriately
D . size the UNDO tablespace appropriately
E . size the SYSTEM tablespace appropriately
F . configure an appropriate undo retention interval
G . change automatic undo management to manual
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You started a long transaction. Before committing， you executed a query on one of the tables currently being modified. You received the following error： ORA-01555： snapshot too old How would you prevent such an error in the future？（）
A . guarantee undo retention
B . add one more redo log group
C . size the redo log files appropriately
D . size the UNDO tablespace appropriately
E . size the SYSTEM tablespace appropriately
F . configure an appropriate undo retention interval
G . change automatic undo management to manual
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The power and torque capability of the steering system must be such that the rudder can be swung from （）one side to（）the other side with the ship at maximum speed.
A . A.35°；35°
B . B.35°；30°
C . C.15°；15°
D . D.28°；60°
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( ) 4. The writer hadn’t intended to fill in the blank questionnaire.
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Often investment bankers will form a group, each one buying only a portion of the new securities to be issued. Such a group is called an underwriting _________
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One type of social practice is formal and includes everyday tasks such as eating, sleeping, dressing, working, playing, and talking to others.
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What tips should we bear in mind when drawing up a questionnaire?
A、See to it that it takes the shortest possible time to answer the questions.
B、Provide space for suggestions or further comments if necessary.
C、All types of questions should be included.
D、<img src="/js/editor20150812/themes/default/images/spacer.gif">Make sure that the questions help yield the information you need.
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This is such a rare offer that we cannot hope to get another one like it; you shouldn’t _______ at this opportunity.
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I prefer street in smll town to _____ in such lrge city ____ Shnghi.tht;sB．one;sC. I prefer street in smll town to _____ in such lrge city ____ Shnghi.tht;s B．one;s C．one; like D．tht; like
A．that; as
B．one; as
C．one; like
D．that; like
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●One use of networks is to let several computers share （71) such as file systems，printers，
●One use of networks is to let several computers share (71) such as file systems，printers，and tape drives.
(71) A．CPU
B．memory
C．resources
D．data
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Look at the four squares that indicate where the following sentence could be added to the passage. Such a relationship does not develop in biology unless it benefits at least one of the members. Where would the sentence best fit？
A．Square Ａ.
B．Square Ｂ.
C．Square Ｃ.
D．Square Ｄ.
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He made such a ___________ contribution to the school that they are naming one of the buildings after him.
A. genuine
B. minimum
C. modest
D. generous
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The number and position of hydrants arranged on board shall be such that _______，one of which shall be from a single length of hose，may reach any part of the ship normally accessible to the passengers or crew while the ship is being navigated．
A.at least two jets of water which shall be from the same length of hose
B.at least two jets of water emanating from the same hydrant
C.at least two jets of water not emanating from the same hydrant
D.at least two jets of water not emanating from the same hydrant，one of which shall be from a single length of hose
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No one would willing subject himself（)such treatment.
A.to
B.on
C in
D.up
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There are different ways in which people try to deal with the problem of energy. One way is the greater production of common energy sources, such as coal, oil and gas. The trouble with these sources, however, is that they are not renewable.
Another way is energy conservation (节能 ), which means using energy more efficiently (有效地 ). In some very cold countries people build special houses to save energy. They place materials between the inside and the outside of the walls of the house to keep the cold out and the warmth in. The house is heated by the lights, the body heat of the people and the other equipment in it.
Finally, renewable energy sources are used even though they are often expensive to develop. One form. of these is geothermal energy. In certain parts of the world the temperature of the earth increases thirty degrees centigrade with each kilometer down. At six kilometers, therefore, it rises to nearly two hundred degrees. To get the heat, water is pumped (压;抽 ) down into the rocks and back up to the surface. Heat from the earth is already used in certain countries.
1、How many ways of dealing with the energy problem are discussed in the text？ ()
A、Two.
B、Three.
C、Four.
D、Five.
2、From the text we learn that coal().
A、is quite easy to produce
B、is not used most efficiently
C、is the most common source of energy
D、could be renewed only by new technology
3、The writer tells about the "special houses" because they().
A、show the excellent skills of the builders
B、serve as an example of energy conservation
C、are heated by different sources of energy
D、are warmer than other types of houses
4、The underlined words "geothermal energy" in the third paragraph mean ().
A、renewable source
B、 underground source
C、 heat inside the earth
D、 temperature of the earth
5、At a place where the surface temperature is 15°C, how deep do you have to dig so as to get a temperature of 75 °C ？ ()
A、One km.
B、 Two km.
C、 Three km.
D、 Four km
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____ exerted strong influence upon many french writers through presenting his dark and grotesque fictional world such as the one in the raven.
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听力原文：W: I didn't see you at the company picnic last weekend. You had such a good time at the last one, so I was surprised when you didn't show up for this one.
M: I had planned to go, but when I got up in the morning, it looked like it was going to rain, so I decided to stay home instead.
W: It looked like rain？ Are you sure about that？ It was sunny all day long at the picnic site.
M: When I woke up in the morning, it was really cloudy and overcast, so I just went back to bed. I suppose that the weather cleared up later on in the day.
Why didn't the man attend the picnic？
A．He didn't enjoy the previous one.
B．He thought it was going to rain.
C．He had some other weekend plans.
D．He wanted to stay home instead of going out.
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Such a small man can' t_____reach the balloon one metre higher than he.
A．possibly
B．impossible
C．possible
D．impossibly
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One use of networks is to let several computers share（75)such as file systems, printers, a
One use of networks is to let several computers share(75)such as file systems, printers, and tape drives.
A．CPU
B．memory
C．resources
D．information
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Under such great ____, no one can do the job well. （）
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Quality planning tools are often used to help plan effective quality management activities.（） is one of such tools，which involves comparing actual or planned project practices to other projects to ge
A．Benchmarking
B． Qualitymetric
C． Qualitychecklist
D． Brainstorming
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One of Jeny's greatest joys in life is eating desserts. Such as milkshake, cookies or strawberry cake.
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Words such as fire /faɪə/, flour /flaʊə/, or loyal /lɔɪəl/ are considered by the native English speakers to have only one syllable, whereas higher /haɪə/ and player /pleɪə/ are more likely to be heard
A．triphthong
B．suffix
C．monophthong
D．diphthong
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Shona says that in her questionnaire her aim was____.
A．to get a wide range of data.
B．to limit people's responses.
C．to guide people through interviews.
