数据冗余可能导致的问题有 ____________________和_____________________。
浪费存储空间及修改麻烦、潜在的数据不一致性
暂无解析
Mary’spronunciationismuchbetterthan__________inherclass.
对外贸易依存度是指()
Wearelivinga_____
It'sseventhirty.I_________gotoschool.
Thebabyalwayssleepswithhiseyeshalf_____.