回答并验证所有的故障诊断者都特别喜爱的一个问题：最近发生了什么更改？
Answer and verify a favorite question of all troubleshooters: What has changed recently?
设计了验证是否出现故障的测试数据包。
The test data package was designed to verify whether is the system malfunctions.
设计了验证是否出现故障的测试数据包。
The test data package was designed to verify whether is the system malfunctions.
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