【单选题】Given a web application in which the cookie userName is expected to contain the name of the user. Which EL expression evaluates to that user name?()
D.
${cookies.userName[0]}
【单选题】在switch(expression)语句中,expression的数据类型不能是( )。
【简答题】Complete the summary.
【多选题】下列关于欧美经济发达国家的说法,正确的有
【多选题】下列各项中,属于借贷记账法规则的有( )