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下面有关数据库系统的特点,正确的有(23)。

 ①查询迅速、准确;

 ②数据冗余度较大;

 ③数据的共享性好;

 ④具有较高的数据独立性;

 ⑤数据结构化;

 ⑥有专门的系统对数据进行统一的管理。

  • A.①③④⑤
  • B.①②③④⑤
  • C.①③④⑤⑥
  • D.①②③④⑤⑥
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