单项选择题
A.It avoids initialization on the first request.
B.It provides the ability to debug runtime errors in the application.
C.It provides better performance on the first request for the JSP page.
D.It avoids execution of the _jspService method on the first request.
单项选择题 The JSP developer wants a comment to be visible in the final output to the browser. Which comment styleneeds to be used in a JSP page？（）
多项选择题 Whichtwoarevalidandequivalent？（）
多项选择题 Inwhichthreedirectories，relativetoawebapplication’sroot，mayataglibrarydescriptorfileresidewhendeployeddirectlyintoawebapplication？（）