下列总氮、氨氮和总磷简写正确的是()。
A、NH3-N、TN和TP
B、TOC、NH3-N和TP
C、HCN、TN和TP
D、TN、NH3-N和TP
参考答案:D
补全对话。
A: Good morning, Sally!
B: Good __1__ , __2__ are you today?
A: I'm __3__, thank you .
B: __4__ that ?
A: Oh, It's a __5__ of my family.
B: Let me have a look. __6__ is she? Is she your mum?
A: No, she isn't. She is my __7__. We call (称呼) her Aunt Huang. And this is my mother.
B: __8__ is your mum?
A: My mum is a doctor.
B: Who __9__ this boy? Is your brother?
A: No, he is my __10__. We call him Cousin Tony.
在数据库应用系统生命周期模型中,规划与分析阶段的输出结果不包括______。
A) 需求规范说明书 B) 系统范围与边界C) 可行性分析报告 D) 项目计划书