@air
2025-04-15
How long is the maintenance cycle for air compressors usually?
- A. once a month
- B. once a quarter
- C. once a year
- D. Depending on usage
Answer: D. Depending on usage
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What is the usual price range for small air compressors?
A. A few hundred yuan to several thousand yuan B. Thousands of yuan to tens of thousands of yuan C. Tens of thousands to hundreds of thousands of yuan D. Hundreds of thousands of yuan to several million yuan Answer: A. A few hundred yuan to several thousand yuan
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