这里的主语是Jim,所以be 动词用单数 is
当名词或代词后跟有with,as well as,as much as,no less than,along with,like,rather than,together with,but,except,besides,including,in additionto,combined with等连接作主语时,谓语动词一般和前一名词或代词的人称和数一致.如：
John,rather than his roommates,is to blame.
约翰,而不是他的室友,应该受到责备.