The market segmentation theory is able to explain why interest rates on bonds of different maturities move together over time.

A .  Reclaims space above and below the high-water mark without using additional space B .  Moves rows to a new physical location，resetting the high-water mark，but uses additional space during the operation C .  Deallocates space above the high-water mark that is currently not in use D .  None of the above

A . It may advise the use of online table redefinition for tables in dictionary managed tablespace. B . It may advise the use of segment shrink for tables in dictionary managed tablespaces it the no chained rows. C . It may advise the use of online table redefinition for tables in locally managed tablespaces D . It will detect and advise about chained rows. E . It may advise the use of segment shrink for free list managed tables.

A . Segment Advisor  B . SQL Tuning Advisor  C . SQL Access Advisor  D . Segment Resource Estimation  E . Automatic Database Diagnostic Monitor (ADDM)

A . /tem baiks/ B . /ten baiks/ C . /təm baiks/ D . /tən baiks/

A . DBA_TABLESPACES  B . DBA_TABLES  C . DBA_SEGMENTS  D . DBA_FREE_SPACE

A .  Heap tables B .  Tables with function-based indexes C .  Indexes D .  Partitions and subpartitions E .  None of the above

A .  identify the segments that you should shrink B .  modify the storage parameters for the tablespace C .  automatically shrink the segments with unused space D .  check the alerts generated for the tablespace that is running low on space

A . VHF B . SART C . NAVTEX D . LES

A . They increase the size of collision domains B . They allow logical grouping of users by function. C . They can enhance network security. D . They increase the size of the broadcast domain while decreasing the number of collision domains. E . They increase the number of broadcast domains while decreasing the size of the broadcast domains. F . They simplify switch administration.

A . Filtering can occur based on Layer 3 information. B . Broadcasts are eliminated. C . Routers generally cost less than switches. D . Broadcasts are not forwarded across the router. E . Adding a router to the network decreases latency.

A . add data files to the tablespace  B . identify the segments that you should shrink  C . modify the storage parameters for the tablespace  D . automatically shrink the segments with unused space  E . check the alerts generated for the tablespace that is running low on space

A . Data, Frame, Packet, Segment, Bit B . Data, Frame, Segment, Packet, Bit C . Data, Packet, Frame, Segment, Bit D . Data, Packet, Segment, Frame, Bit E . Data, Segment, Frame, Packet, Bit F . Data, Segment, Packet, Frame, Bit

A. B. C. D.

对 错

The world art market had already been losing momentum for a while after rising bewilderingly since 2003．At its peak in 2007 it was worth some $ 65 billion, reckons Clare McAndrew, founder of art Economics, a research firm-double the figure five year earlier. Since then it may have come down to $ 50 billion. But the market generates interest far beyond its size because it brings together great wealth, enormous egos, greed, passion and controversy in a way matched by few other industries. In the weeks and months that followed Mr Hirst's sale, spending of any sort became deeply unfashionable. In the art world that meant collectors stayed away from galleries and salerooms. Sales of contemporary art fell by two-thirds, and in the most overheated sector, they were down by nearly 90% in the year to November 2008．Within weeks the world's two biggest auction houses, Sotheby's and Christie's, had to pay out nearly $ 200m in guarantees to clients who had placed works for sale with them. The current downturn in the art market is the worst since the Japanese stopped buying Impressionist at the end of 1989．This time experts reckon that prices are about 40% down on their peak on average, though some have been far more fluctuant. But Edward Dolman, Christie's chief executive, says: "I'm pretty confident we're at the bottom. " What makes this slump different from the last, he says, is that there are still buyers in the market. Almost everyone who was interviewed for this special report said that the biggest problem at the moment is not a lack of demand but a lack of good work to sell. The three Ds--death, debt and divorce-still deliver works of art to the market. But anyone who does not have to sell is keeping away, waiting for confidence to return. In the first paragraph, Damien Hirst's sale was referred to as "a last victory" because______. A．the art marker had witnessed a succession of victories B．the auctioneer finally got the two pieces at the highest bids C．Beautiful inside My Head Forever won over all masterpieces D．it was successfully made just before the world financial crisis

A．3/4 B．2/3 C．1/2 D．1/3 E．1/4

The world art market had already been losing momentum for a while after rising bewilderingly since 2003. At its peak in 2007 it was worth some $65 billion, reckons Clare McAndrew, founder of Arts Economics , a research firm—double the figure five years earlier. Since then it may have come down to $50 billion. But the market generates interest far beyond its size because it brings together great wealth, enormous egos, greed, passion and controversy in a way matched by few other industries. In the weeks and months that followed Mr Hirst's sale, spending of any sort became deeply unfashionable. In the art world that meant collectors stayed away from galleries and salerooms. Sales of contemporary art fell by two-thirds, and in the most overheated sector, they were down by nearly 90% in the year to November 2008. Within weeks the world's two biggest auction houses, Sotheby's and Christie's, had to pay out nearly $200m in guarantees to clients who had placed works for sale with them. The current downturn in the art market is the worst since the Japanese stopped buying Impressionists at the end of 1989. This time experts reckon that prices are about 40% down on their peak on average, though some have been far more fluctuant. But Edward Dolman, Christie's chief executive, says: " I'm pretty confident we're at the bottom. " What makes this slump different from the last, he says, is that there are still buyers in the market. Almost everyone who was interviewed for this special report said that the biggest problem at the moment is not a lack of demand but a lack of good work to sell. The three Ds—death, debt and divorce—still deliver works of art to the market. But anyone who does not have to sell is keeping away, waiting for confidence to return. In the first paragraph, Damien Hirst's sale was referred to as "a last victory" because_________. A．the art market had witnessed a succession of victories B．the auctioneer finally got the two pieces at the highest bids C．Beautiful Inside My Head Forever won over all masterpieces D．it was successfully made just before the world financial crisis

A．defined B．focus C．value-added D．competitive advantage E．customer-focused