模式/内模式映像保证数据库系统中的数据能够具有较高的______。
A、逻辑独立性B
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Theintroductionofcontainersintransportgreatly______carriageofgoods.
Wearewaiting______yourreply______ourletter.
Wecannotentertainyoursuggestion________itdoesnotseemworkable.()
Byjointeffortswecan___bothfriendshipandbusiness.()
Importswillbeallowedinproportion_______exports.