CF608 for building AC, CF609 for auto AC

来源: biglow 于 2009-05-17 20:34:41 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (120 bytes)
回答: 维修汽车空调，你需要这个 由 biglow 于 2009-05-17 11:42:37

both takes about two hours study, 30 minutes test ( 50 questions but need to get 42 correct), and pay ~$20 for the test.

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