In which three directories， relative to a web application’s root， may a tag library descriptor file reside when deployed directly into a web application？（）

多项选择题Giventhatascopedattributecartexistonlyinauser’ssession，whichtwo，takenindependently，ensurethescopedattributecartnolongerexists？（）

A. ${cart = null } 
B. <c：remove var=”cart” /> 
C. <c：remove var=”${cart}” /> 
D. <c：remove var=”cart” scope=”session” /> 
E. <c：remove scope=”session”>cart</c：remove>
F. <c：remove var=”${cart}” scope=”session” /> 
G. <c：remove scope=”session”>${cart}</c：remove>

多项选择题AssumethescopedattributeprioritydoesNOTyetexist.Whichtwocreateandsetnewrequest-scopedattributeprioritytothevalue“medium”？（）

A. ${priority = ‘medium’ } 
B. ${requestScope[ ‘priority’ ] = ‘medium’ } 
C. <c：set var=priority” value=”medium” /> 
D. <c：set var=”priority” scope=”request”>medium</C：set> 
E. <c：set var=”priority” value=”medium” scope=”request” /> 
F. <c：set property=”priority” scope=”request”>medium</c：set> 
G. <c：set property=”priority” value=”medium” scope=”request” />

多项选择题Whichthe twoJSTLURL-relatedtagsperformURLrewriting？（）

A. url
B. link
C. param
D. import
E. redirect

单项选择题Assume that a news tag library contains the tags lookup and item：  Lookup Retrieves the latest news headlines and executes the tag body once for each headline. Exposed a NESTED page-scoped attribute called headline of type com.example. Headline containing details for that headline.  Item Outputs the HTML for a single news headline. Accepts an attribute info of type com.example. Headline containing details for the headline to be rendered. Which snippet of JSP code returns the latest news deadlines in an HTLM table， one per row？（）

A.A
B.B
C.C
D.D

单项选择题Which JSTL tag structure supports this scenario？（）

A.A
B.B
C.C
D.D