214．What is a lighted safe water mark fitted with to aid in its identification?
举一反三
- There are three types of marking: shipping mark, information mark and identification mark.
- What is one of the leading causes of death around the world for children under five? A: Diarrheal disease from safe water B: Diarrheal disease from unsafe water
- 12 What is unusual about Brackenside pool? A: A its architectural style B: B its heating system C: C its method of water treatment
- What would be a good reason for the man to buy the product A: [A] Its low purchase price. B: Its wide availability. C: Its good nutritional value. D: Its high water content.
- The cylinder is fitted with internal liner so that a water space is left （） the liner and the outer wall.