多选题Which two are required elements for the element of a web applicationdeployment descriptor？（）A<realm-name>B<url-pattern>C<description>D<web-resource-name>E<transport-guarantee>
题目
多选题
Which two are required elements for the element of a web applicationdeployment descriptor？（）
A
<realm-name>
B
<url-pattern>
C
<description>
D
<web-resource-name>
E
<transport-guarantee>