【名词对照】
总大肠菌群数(amount of total colibacillus)、生活饮用水卫生标准(health standard for domestic drinking w ...)
[单选题]水源水水质卫生要求对只经氯消毒即供饮用者，原水总大肠菌群数不应超过
A. 100cfu/L B. 1000cfu/L C. 2000cfu/L D. 5000cfu/L E. 10000cfu/L
