单项选择题
A.public void processingInstruction() B.public void skippedEntity() C.public void unparsedEntityDecl() D.public void startDocument()
A.public void notationDecl() B.public void characters() C.public void ignorableWhitespace() D.public void processingInstruction()
A.public void startElement() B.public void startDocument() C.public void startPrefixMapping() D.public voic setDocumentLocator()