多项选择题
A. It encapsulates component lookup procedures
B. It increases source code duplication and decreases reuse
C. It improves client performance by caching context and factory objects
D. It degrades network performance due to increased access to distributed lookup services
单项选择题 Assumethetaghandlerforast：simpletagextendsSimpleTagSupport.Inwhatwaycanscriptletcodebeusedinthebodyofst：simple？（）
单项选择题 The tag handler for n：recurse extends SimpleTagSupport.Assuming an n：recurse tag can either contain an empty body or another n：recurse tag， which strategy allows the tag handler for n：recurse to output the nesting depth of the deepest n：recurse tag？（）
单项选择题 Which code snippet， inserted at line 8， causes the value Company to be output？（）