单项选择题
Which method must be used to encode a URL passed as an argument to HttpServletResponse.sendRedirect when using URL rewriting for session tracking？（）
A. ServletResponse.encodeURL B. HttpServletResponse.encodeURL C. ServletResponse.encodeRedirectURL D. HttpServletResponse.encodeRedirectURL
单项选择题 What is the result when a request is sent to MyServlet？（）
单项选择题 Which statement， inserted at line 16， unbinds an attribute from a session？（）
单项选择题 Whichthe statementistrueaboutwebcontainersessionmanagement（）？
