In which of the following scenarios is a tablespace recovery required？（）

A . Shut down the database. B . Set the appropriate parameters in init.ora file. C . Start the database in NOMOUNT state. D . Issue the ALTER DATABASE ARCHIVELOG command. E . Open the database. F . Take a full closed backup.

A . A CSU/DSU terminates a digital local loop B . A modem terminates a digital local loop C . A CSU/DSU terminates an analog local loop D . A modem terminates an analog local loop E . A router is commonly consideredaDTEdevice F . A router is commonly considereda DCE device

A、Golden Snub-nosed Monkey B、golden eagle C、giant salamander D、 Sunbird

A．Fear helps us to be careful about our surroundings. B．Anger may stimulate us to make greater efforts. C．Happiness inspires us to continue what we are doing. D．Anger tends to do us more harm than good.

A．It is welcomed and practical. B．It is useful for the ethanol industry. C．It is beneficial to the poor. D．How to deliver it is a big problem.

A．Airport facility charges. B．Government taxes. C．Departure taxes. D．Meals and beverages.

A．Teachers are well paid at Deep Springs. B．Students are mainly from New York State. C．The length of schooling is two years. D．Teachers needn’t pay for their rent and meals.

A.Using imprecise language (i.e. nearly, approximately) B.Mixing tasks, specifications, special instructions and approvals C.No pattern, structure or chronological order D.Wide variation in the size of tasks or details of work E.All of the above

A．The two-way radio is like a telephone for Australian farmers. B．Families on large farms could keep in touch with each other by radios. C．The two-way radio is like a newspaper for Australian farmers. D．All the Australians live on dry places, and they use radios in many ways.

A．America was attacked by the British. B．America"s national flag was invented. C．America"s national flag was well accepted. D．America"s national anthem was born.

A．It call be commercialized. B．It reduces the dangerous forces in bicycle accidents. C．It adds a few dollars to the cost of a bike. D．It changes the direction of the handlebars in all impact.

A．Filial responsibility in Singapore is enforced by law B．Fathers have legal obligations to look after children C．It is an acceptable practice for the old to continue working D．The Advisory Council was dissatisfied with the problems of the old 此题为多项选择题。

A．To issue declarations. B．To hold news conferences. C．To meet foreign visitors. D．To organize a protest parade.

A．New techniques are continually developed and new machines invented for undersea exploration. B．If not well built, a submersible is most likely to get crushed in deep water. C．A submersible, when manned looks very much like a spaceship. D．In certain respects undersea exploration is often faced with the same problem as space travel is.

A．Females are often emotional as well as self-centred. B．The world's biggest firms are still managed by male executives. C．A corporate culture has something to do with the profitability of a firm. D．It is generally believed that diverse groups are conducive to finding out potential danger.

A．Though the man had some trouble, he got the necklace without paying cash. B．Nobody noticed the man take the necklace with him. C．The manager never thought an old man would be a thief. D．The thief always stole things in famous jewelry shops.

A．Tutorial B．Lecture C．Seminar D．Field trip