国产做a爱一级毛片,久久久毛片

1 Which two are valid declarations of char？（）

2 Which the two JSTL URL-related tags perform URL rewriting？（）

3 Which two authentication mechanisms provide weaker protection than other mechanisms？（）

4 Given that a scoped attribute cart exists only in a user’s session， which two， taken independently， ensure the scoped attribute cart no longer exists？（）

5 Upon a user’s first visit to the website， which two operations are always performed when the getSession method is called with no arguments in a servlet？（）

SCDCD(310-081)多項選擇題每日一練(2019.05.10)