城市污水处理厂,平流式沉砂池最大流量时停流时间不应少于()s。 ["30","60","90","120"]
“大冶”的汉语拼音是()。 ["A、da ye","B、da zhi","C、da yie","D、da yi"]
城市污水处理厂,平流式沉砂池的设计最小流速应为()m/s。 ["0.15","0.3","0.6","1.0"]
负荷控制的主要措施有哪些?(列举常用的8种措施)
“蚌埠”的汉语拼音是()。 ["A、beng fu","B、beng bu","C、ben fu","D、peng bu"]
社会发展对教师角色认知能力的影响有哪些?