sem diff --commit abc1234
（四）围攻裁判员、运动员或者其他工作人员的；
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However, whereas PCs typically have a rechargeable battery or removable coin cell that is used to retain configuration settings and maintain the time-of-day while powered down, Sun hardware instead uses a TIMEKEEPER device which integrates SRAM, RTC and a battery. Hence when the battery fails, the entire device must be replaced.
是培养精通某一项具体技能、但可能被机器取代的"匠人"，还是培养能够理解技术本质、运用技术解决复杂问题、并保有深厚人文素养与创造力的"通才"？