A、Perform EXPORT, DROP, and IMPORT operations on the BOOKINGS table sequentially B、Shrink the BOOKINGS table by using the ALTER TABLE SHRINK SPACE command C、Move the BOOKINGS table to a different location by using the ALTER TABLE MOVE command D、Deallocate the space in the BOOKINGS table by using the ALTER TABLE DEALLOCATE UNUSED command

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第8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9题

[单选题] Don't worry. There is （）room for all your books here.

A、more B、much C、enough D、some

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