以下属于二次文献的有（    ）。

A、<span style="font-family: 宋体;">综述</span><span style="font-family: &#39;Times New Roman&#39;;">&nbsp; &nbsp;</span><span style="font-family: 宋体;"></span>

B、<span style="font-family: 宋体;">报告</span><span style="font-family: &#39;Times New Roman&#39;;">&nbsp; &nbsp;</span><span style="font-family: 宋体;"></span>

C、<span style="font-family: 宋体;">文摘</span><span style="font-family: &#39;Times New Roman&#39;;">&nbsp; &nbsp;&nbsp;</span><span style="font-family: 宋体;"></span>

D、<span style="font-family: 宋体;">手册</span><span style="font-family: 宋体;"></span>