With the english dictionary

I). Choose the best answer 1). You can ---------- the new words in the dictionary. A).look up B). look for C). look after D). look forward 2). She went to the bookshop---------------------- A). so that to buy some books. B). in order that buy some books. C). so as to buying some books. D). so as to buy some books. 3). "Would you like to have dinner with me?"

5p kegiacmo 02-05-2013 73 3   Download

Users and Security Security domain The database administrator defines the names of the users who are allowed to access a database. A security domain defines the settings that apply to the user. Authentication mechanism A user who requires access to the database can be authenticated by one of the following: Data dictionary Operating system Network The means of authentication is specified at the time the user is defined in the database and can be altered later. This lesson covers authentication by database and by operating system only.

20p trinh02 28-01-2013 82 3   Download