【单选题】已知定义publicclassEmployeepublicclassManagerextendsEmployeepublicclassContractorextnedsEmployeeManagerm=new Manager();则表达式m instance of Employee的值为()
【单选题】mso-bidi-font-family:"Times New Roman";mso-font-kerning:1.0pt;mso-ansi-language: EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA">哪一种失语症患者的预后较好