这题答案是下面哪一个？不能确定是BD，还是AB。

cz170422

What is true about non-equijoin statementperformance?

A) The Oracle join syntax performs betterthan the SQL: 1999 compliant ANSI join syntax.

B) Table aliases can improve performance.

C)The BETWEEN condition always performs lesswell than using the >= and <= conditions.

D) The join syntax used makes no differenceto performance.

E) The BETWEEN condition always performsbetter than using the >=land k=conditions.

答案：BD？AB?