下面哪些是有效转述的特点？

下面哪些是有效转述的特点？
A.keeps some phrases from the original that are in common use
B.retains the same meaning
C.has mainly different vocabulary
D.has a different structure to the original
正确答案：keeps some phrases from the original that are in common use retains the same meaning has mainly different vocabulary has a different structure to the original