Practice question

What does a circular blue traffic sign with a white number '30' in the center signify?

  1. Maximum speed limit of 30 km/h
  2. Route number 30
  3. Minimum speed limit of 30 km/h (最低限速30公里/小时)
  4. Distance to destination is 30 km

Answer: C — Minimum speed limit of 30 km/h (最低限速30公里/小时)

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