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Cisco Catalyst 4500 Series switches are attractive to medium-size campuses with growth opportunities due to the switches enhanced security and which two other features？ （）
A . enhanced multilayer software image
B . connectivity to multiple types of WAN connections
C . Cisco Unified Communications Manager
D . QoS for converged networks
E . modular， customizable component
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With regard to Ethernet media access methods, which of the following are true?（）
A . A device waits for an electronic signal before transmitting.
B . A device listens and waits until the media is not busy before transmitting.
C . All devices on an Ethernet segment see data that passes on the network medium.
D . Only the sender and the receiver devices see data that passes on the network medium.
E . Ethernet networks allow you to configured devises with higher transmission priority.
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The database has the data block size set to 8 KB. You need to import a tablespace with a 4 KB block size into the database. Which additional memory parameter（s） should be configured to perform a transportable tablespace import？（）
A . DB_4K_CACHE_SIZE only
B . DB_8K_CACHE_SIZE only
C . DB_BLOCK_SIZE and DB_4K_CACHE_SIZE
D . DB_BLOCK_SIZE and DB_8K_CACHE_SIZE
E . SGA_TARGET and DB_4K_CACHE_SIZE
F . DB_CACHE_SIZE only
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Due to the hazards involved with Halon extinguishers on a ship，the size II extinguisher may only be used（）.
A . outside
B . on class C fires
C . in an emergency
D . on class B fire
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What are the header sizes for point-to-point and multi-point GRE（also known asmGRE） with tunnel key？（）
A . 4 bytes for both
B . 4 bytes， and 8 bytes respectively
C . 8 bytes for both
D . 24 bytes for both
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With regards to a diesel engine crankcase explosion, the most violent is the（） (1) primary explosion (2) secondary explosion
A . (1) only
B . (2) only
C . both (1) and (2)
D . neither (1) or (2)
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The core Company switches are configured to use 802.1Q trunks. Which three statements are correct with regard to the IEEE 802.1Q standard？（）
A . The IEEE 802.1Q frame format adds a 4 byte field to a Ethernet frame
B . The packet is encapsulated with a 26 byte header and a 4 byte FCS
C . The protocol uses point-to-multipoint connectivity
D . The protocol uses point-to-point connectivity
E . The IEEE 802.1Q frame uses multicast destination of 0x01-00-0c-00-00
F . The IEEE 802.1Q frame retains the original MAC destination addre
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A device used to enlarge the size of an existing bore hole，having teeth arranged on its outside circumference to cut the formation as it rotates is a（n）（）.
A . Enlarger bit
B . Casing bit
C . Hole opener
D . Casing opener
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The most crucial time for any bearing with regards to lubrication is （）
A . during low loads
B . after proper oil viscosity is reached
C . during starting
D . after cleaning filter
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Which of the following statements is correct with regards to the operation of a centrifugal cargo pump?（）
A . Oil is discharged from the impeller through the outlet
B . Gravity causes the oil to flow toward the discharge
C . The self-priming feature of the centrifugal pump enables it to draw its own suction as it starts
D . The discharge capacity varies directly with the speed of the impeller
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A device used to enlarge the size of an existing bore hole, having teeth arranged on its outside circumference to cut the formation as it rotates is a (n)（）.
A . enlarge bit
B . casing bit
C . hole opener
D . casing opener
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The Company should clearly define and document the master’s responsibility with regard to all the following items except（）.
A . implementing the safety and environmental protection policy of the Company
B . motivating the crew in the observation of that policy
C . designing the procedures for internal audits and management reviews
D . issuing appropriate orders and instructions in a clear and simple manner
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With regard to bridges and switches, which of the following statements are true?（）
A . Switches are primarily software based while bridges are hardware based.
B . Both bridges and switches forward Layer 2 broadcasts.
C . Bridges are frequently faster than switches.
D . Switches typically have a higher number of ports than bridges.
E . Bridges define broadcast domain while switches define collision domains.
F . Both bridges and switches make forwarding decisions based on Layer 2 addresses.
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Oracle JRockit JVM uses -Xns option to set nursery size when the generational garbage collection mode is used. Which two JVM properties are affected by changing its size ？（）
A . compaction ratio limit
B . garbage collection frequency
C . garbage collection times
D . fragmentation heap size
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With regard to syllabus design, the Communicative Approach emphasizes topics.（）
A . 正确
B . 错误
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How to describe a thing from its size.
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With regard to syntax, Chinese does not require many conjunctions or transitions words to bridge the gap in meaning. The reader can infer it without much difficulty.
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The challenge posed to the Wynne-Edwards' theory by several studies is regarded by the author with
A．complete indifference.
B．qualified acceptance.
C．skeptical amusement.
D．perplexed astonishment.
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The problem with history is simple. There is too much of it, And more of it comes along every day. We need something that will cut the past down to size. We want heroes and heroines that a modern person can identify with. That is where Hollywood comes in.
Film makers have often based their work on historical events. Why go to the trouble of writing a brand new story when so many exciting things have happened in the pasty People will often already know the story, That leaves the director free to thrill us with details of what life as like in imperial China or ancient Rome.
Most historians dislike this attitude. They see history as a complex thing, influenced by great political and economic forces. Film audiences are not very interested in this. They want kings and queens. They pay their money to see fancy clothes and a good fight. And this is what the film industry tries to give them.
Sometimes this approach can cause trouble. The film Titanic was a success around the world. In one of the film's most dramatic moments, a member of the ship's crew begins shooting into the crowd trying to get into the lifeboats as the ship sinks. When the film was released, the real life sailor's surviving relatives protested. They pointed out that this was not what had actually happened The film makers made a public apology. But everyone who has seen the film remembers the sight of the man shooting into the crowd.
Defenders of "Hollywood history" say that most of the time the film makers get the facts right. The action is based on real events and the clothes are accurate. People talk in the way that they would have done in the past even if they do it with a modern American accent. For many people, a historical film will be the closest they come to discovering the past.
It is still possible to find mistakes. Millions have been spent on putting together a replica of ancient Rome. The costumes are right and the atmosphere is perfect. Yet if you look very closely, a plane can be seen passing through the sky above.
Some film makers say that history needs to be simplified if it is to be filmed. The film maker's job is to make viewers interested. If they want to know more, they can do their own research.
The difference between film history and real history is the difference between the facts and the truth. We can watch a "costume drama" and know that all the materials used are probably accurate. But if we want to find out the whole story, we have to do it ourselves. We have to go back to the books.
The main point of the passage is______.
A．that films based on past events are often big hits
B．how much we can trust the Hollywood version of history
C．that we should read books rather than see films to know the history
D．why film audiences are interested in film history rather than real history
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The company's prepayment to its supplier is regarded as a liability item.
A．Right
B．Wrong
C．Doesn't say
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2. A heaving pot of bubbling cheese with bite-sized bread and vegetables to dip into it, that’s what hot pot in the USA is about. The dish bears a French name: fondue.
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With which of the following statements regarding neutrino astronomy would the author be most likely to agree？
A．Neutrino astronomy will supersede all present forms of astronomy.
B．Neutrino astronomy will be abandoned if the DUMAND project fails.
C．Neutrino astronomy can be expected to lead to major breakthroughs in astronomy.
D．Neutrino astronomy will disclose phenomena that will be more surprising than past discoveries.
此题为多项选择题。
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Which of the following is correct with regard to stocks？ （i) Stock-outs arise when too lit
Which of the following is correct with regard to stocks？ (i) Stock-outs arise when too little stock is held. (ii) Safety stocks are the level of units maintained in case there is unexpected demand. (iii) A reorder level can be established by looking at the maximum usage and the maximum lead-time.
A、(i) and (ii) only
B、(i) and (iii) only
C、(ii) and (iii) only
D、(i), (ii) and (iii)
