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TINA 软件的“分析”菜单变成非活动



大虾好

      我昨天在TI的网页上下载了TINA软件,感觉蛮好用的,但是今天打开的时候,‘分析’‘T@M’   "工具" 几个菜单变成非活动的,不好点击,不知道是什么原因,

是不是需要申请linces