专业英语（水资）- 第3周 - 课前测验

Q1:姓名

Q2:Which one is the most readily available source of water?

Q3:Which source of water is less open to atmospheric pollution?

Q4:If dissolved oxygen is not sufficent, bacteria will experience_______conditions.

Q5:CO2 is the end-production of _______process.

Q6:Rock strata that holds water are known as______.

Q7:In a river, ______________ must be maintained to ensure enough oxygen for bacteria to degrade the organic wastes.

Q8:[图片]What is the function of (1) and (2) in the aquifer system?

Q9:[图片]Can you name them?