问题
单项选择题
废水监测包括水样的（）等环节。
A、采集与保存
B、水质分析
C、数据处理与评价
D、A和B和C
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
废水监测包括水样的（）等环节。
A、采集与保存
B、水质分析
C、数据处理与评价
D、A和B和C
参考答案：D
I have a good friend. name is Peter. We study in Beijing Sunshine Secondary School. We are in the same (同一个) class. He sits in front of . His favourite lesson is Music. He many CDs. He likes music very much. He likes playing football, too. After school we often play football in the . He is very helpful. We often help each . Peter is not Chinese. He is from . He his family comes to Beijing. His father is a doctor and his mother is a nurse. They work from Monday Friday. At weekends, his mother likes shopping and his father likes fishing. Sometimes they go to the park. They all like Chinese food. The whole family very happy.
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