In the Oracle system, sets of SQL statements and control flow statements that have been named, compiled, and stored in the database are referred to as stored（）。

A、 PL/SQL

B、 procedures

C、 triggers

D、 transactions

被称为细胞凋亡抑制基因的是（）

A.Myc

B.bcl-2

C.p53

D.Ice

E.Fas/APO-1