杜甫提出“文章合为时而著,歌诗合为事而作”。
参考答案:错
I disagree that students do homework together.
They talk ____ doing homework. [ ]
A. instead
B. instead with
C. in place of
D. instead on
在转储过程中允许对数据库进行存取与修改的转储策略称为()转储策略。