评价活性污泥的指标主要有(),(),(),(),()。
参考答案:MLSS,MLVSS,SV%,SVI,θC
根据对话意思和所给首字母,写出完整正确的单词。
Dear Li Lei,
Thank you for your last letter. I’d like to tell you about a good 小题1: f __ of mine. His name is John. Next week, he will 小题2: v ___ China, but he knows nothing about the country. Can you 小题3: m ___ him at the airport?
Look, here is a picture of him. He is tall with short, black hair. He has two 小题4: b _ ___ eyes. On the day he arrives, he will wear a light blue shirt and white trousers. He doesn’t wear
小题5:g ____ .
Could you help me? Thank you very much.
计算机在财务、销售和银行存款业务中的管理,是属于计算机在()中的应用。
A.科学计算
B.自动化控制
C.数据处
D.人工只能