History

Time	Change
2014-02-06 00:00:40+00:00	Created
2014-02-06 00:00:40+00:00	Associated with MathML token element
2016-05-27 14:20:16+00:00	Associated with MathML字句要素
2016-05-27 14:20:23+00:00	Associated with 字句要素
2016-05-27 14:20:23+00:00	Associated with token element