多项选择题 ClicktheExhibitbutton. TheApplianceclassisaSingletonthatloadsasetofpropertiesintoaMapfromanexternaldatasource.Assume： AninstanceoftheApplianceclassexistsintheapplication-scopedattribute，applTheapplianceobject includesthenamepropertythatmapstothevalueCobiaTherequest-scopedattribute，prop，hasthevaluename. WhichtwoELcodesnippetswilldisplaythestringCobia？（）

多项选择题 GivenanELfunctionfoo，innamespacefunc，thatrequiresalongasaparameterandreturnsaMap，which twoarevalidinvocationsoffunctionfoo？（）

单项选择题 You have created a web application that you license to real estate brokers. The webapp is highly customizable including the email address of the broker， which is placed on the footer of each page. This isconfigured as a context parameter in the deployment descriptor： 10.<context-param> 11.<param-name>footerEmail</param-name> 12.<param-value>joe@estates-r-us.biz</param-value> 13.</context-param> Which EL code snippet will insert this context parameter into the footer？（）