插入access数据库报语法错误，不知为什么？就教！

insert into tb_question(name,questiontitle,
                                 questiondescribe,datetime,questiontype,subject,
                                 enclosure,link,timelimit,answerset,isAnswered,
                                 teachername,answercontent,answerenclosure,invaluate,frequency)
                                   values("shipan","流水行船问题","　例1 一只渔船顺水行25千米，用了5小时，水流的速度是每小时1千米。此船在静水中的速度是多少？（适于高年级程度)","2019-10-28",2,2,"","",342578,1,0,"zujian","","",1,0)