单项选择题
} What is the result？（）
A. Compilation succeeds and 1 is printed. B. Compilation succeeds and 2 is printed. C. An error at line 8 causes compilation to fail. D. An error at line 14 causes compilation to fail.
多项选择题 WhichthethreearevalidURLmappingstoaservletinawebdeploymentdescriptor？（）
单项选择题 WhichHTTPmethodhasthecharacteristicthatmultipleindentialrequestsmayproducesideeffectbeyondthoseofasinglerequest（）？
多项选择题 ForagivenServletResponseresponse，whichretrievesanobjectforwritingbinarydata？（）
}