java-使用quartz报错‘?‘ can only be specified for Day-of-Month -OR- Day-of-Week

设定的表达式是

CronExpression '0 57 9 ? * ? *' is invalid

报错是

Caused by: java.text.ParseException: '?' can only be specified for Day-of-Month -OR- Day-of-Week.
	at org.quartz.CronExpression.storeExpressionVals(CronExpression.java:614)
	at org.quartz.CronExpression.buildExpression(CronExpression.java:487)
	at org.quartz.CronExpression.<init>(CronExpression.java:276)
	at org.quartz.CronScheduleBuilder.cronSchedule(CronScheduleBuilder.java:107)
	... 1 more

解决方法：
不能再同一个表达式里面有两个？