问题
单项选择题
污水处理后排放和回用前通常需要进行消毒处理，需要监控微生物指标是（）。
A.细菌和病毒总数
B.真菌和细菌总数
C.病毒和真菌总数
D.细菌总数和大肠菌群数
答案
参考答案：D
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污水处理后排放和回用前通常需要进行消毒处理，需要监控微生物指标是（）。
A.细菌和病毒总数
B.真菌和细菌总数
C.病毒和真菌总数
D.细菌总数和大肠菌群数
参考答案：D
注意：1。每处错误及其修改均仅限一词； 2．只允许修改10处，多者（从第11处起）不记分。 We all make plans, so we also change our plans all the time. Sometimes bad weather or traffic stop us. But usual it is just because we are lazy. I planned to go for a picnic for my classmate Wu Jun one month ago. But they still haven’t carried out the plan. One time it was because I don’t feel alright. I put it off. But the other two time it was just because I didn’t feel like go anywhere. I just wanted to stay at home and watch TV. However, I don’t want to be lazy man. So I will go for a picnic with Wu Jun on tomorrow no matter what. |