单项选择题 The tl：taskList and tl：task tags output a set of tasks to the response and are used as follows： 11. 12. 13. 14. 15. The tl：task tag supplies information about a single task while the tl：taskList tag does the final output. The taghandler for tl：taskList is TaskListTag. The tag handler for tl：task is TaskTag. Both tag handlers extendBodyTagSupport. Which allows the tl：taskList tag to get the task names from its nested tl：task children？（）

多项选择题 Whichtwodirectivesareapplicableonlytotagfiles？（）

单项选择题 You are creating a library of custom tags that mimic the HTML form tags. When the user submits a formthat fails validation， the JSP form is forwarded back to the user. The<t：textField> tag must support the ability to re-populate the form field with the request parameters from theuser’s last request. For example， if the user entered "Samantha" in the text field called firstName， then theform is re-populated like this： <input type=’text’ name=’firstName’ value=’Samantha’ />  Which tag handler method will accomplish thisgoal？（）