（）objects are those which stand out clearly from the background or other objects and are easily identifiable from a few miles offshore in normal visibility．..

第1题

[多选题] You want to make use of the object features available in the database for the form module you are developing. Which three statements about object types are true? （）

A、An object type is a user-defined composite data type. B、The attributes of an object type can be those of other object types. C、A PL/SQL table of records is an example of a nested object type. D、An object type must be declared as a type before the actual object itself can be declared.

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第2题

[单选题] Vessels required to be equipped with an approved backfire flame arrester are（）.

A、those with diesel engines B、all those with gasoline engines C、those with large engines only D、None of the above

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第3题

[单选题] There are several ways you can find out about the countries and places you wish to visit. You can talk to friends who have travelled to the places. Or you can go and see a colour film. Or you can read travel books. It would seem that there are three kinds of travel books. The first are those that give a personal, subjective (主观的) account of travels which the author has actually made himself, if they are informative and have a good index (索引), then they can be useful to you when you are planning your travels. The second kind are those books whose purpose is to give a purely objective (客观的)description of things to be done and seen. If a well-read, cultured person has written such a book, then it is even more useful. It can be sorted as a selected guide book. The third kind are those books which are called "a guide" to some place or other. If they are good, they will, in addition to their factual information, give an analysis or an explanation. Like the first

A、how to travel B、how to buy travel books C、how to read a travel book D、travel books

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第4题

[填空题] The goals for secondary education are（）from those for higher education.

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第5题

[多选题] What are three configuration objects used to build Junos IDP rules? （）(Choose three.)

A、zone objects B、policy objects C、attack objects D、alert and notify objects E、network and address objects

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第6题

[单选题] The"Lost Generation"refers to those who（）

A、have no ambition in life B、are physically and spiritually impotent C、are homeless D、are expatriates

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第7题

[多选题] You executed the following command to drop a user: DROP USER scott CASCADE; Which two statements regarding the above command are correct?（）

A、All the objects of scott are moved to the Recycle Bin. B、Any objects in the Recycle Bin belonging to scott are purged. C、All the objects owned by scott are permanently dropped from the database. D、All the objects of scott in the Recycle Bin must be purged before executing the DROP command. E、Any objects in the Recycle Bin belonging to scott will not be affected by the above DROP command.

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第8题

[单选题] Odorous cargoes are those that（）.

A、are exceptionally dusty and leave a residue B、are liquid but are in containers C、are susceptible to damage by tainting D、give off fumes that may damage other cargoes

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第9题

[单选题] Odorous cargoes are those that（）.

A、are exceptionally dusty and leave a residue B、are liquid but are in containers C、are susceptible to damage by tainting D、give off fumes that may damage other cargoes

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（）objects are those which stand out clearly from the background or other objects and are easily identifiable from a few miles offshore in normal visibility．

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