多项选择题

A.At deploy time, Java EE containers add a directory called META-INF directly into the MyApp directory.
B.At deploy time, Java EE containers add a file called MANIFEST.MF directly into the MyApp directory.
C.It can instruct your Java EE container to verify, at deploy time, whether you have properly configured your application’s classes.
D.At deploy time, Java EE containers add a directory call META-WAR directly into the MyApp directory.