拟建项目正常排放菜种污染物质(比重ρ≈1)的一阶袞减系数K=O,预測下游混合均匀断面 发布时间:2019-09-30 20:17 │ 来源:www.tikuol.com 题型:单项选择题 问题: 拟建项目正常排放菜种污染物质(比重ρ≈1)的一阶袞减系数K=O,预測下游混合均匀断面的平均浓度时,应优先采用()模式。A.—维动态B.二维动态C.一维动态D.零维动态
题型:单项选择题 阅读理解。 SUNNY SCHOOL We are a school for children of 6-15. We want a cook, a library assistant, a P. E. teacher and a language teacher.JobAgeLanguageSkillsOther terms(条件)Cook25-40ChineseCook Chinese food and western foodHealthyLibrary assistant20-35Chinese, EnglishHave the knowledge (知识) fromdifferent kinds of booksCareful(细心)P. E. teacher20-40Chinese, EnglishPlay basketball, soccer and volleyballHealthy andStrong (健壮)Language teacher30-45Chinese, EnglishSpeak English and write English wellCareful1. The children of _______ can go to Sunny School. A. 5 B. 16 C. 8 D. 32. Tom is 20 years old, and he can speak Chinese and English. He also plays sports very well. So he can be _______ at Sunny School. A. a cook B. a P. E. teacher C. a language teacher D. a library assistant 3. _______ doesn't need to speak English. A. The language teacher B. The library assistant C. The cook D. The P. E. teacher 4.A library assistant must _______. A. be between 20 and 40 B. write English well C. be healthy and strong D. know different kinds of books well 5. This Wanted may (可能) come from _______. A. a newspaper B. a history magazine C. a story book D. a movie 查看答案
题型:单项选择题 在小接地电流系统中,某处发生单相接地时,母线电压互感器开口三角形的电压()。A.故障点距母线越近,电压越高。B.故障点距母线越近,电压越低。C.不管距离远近,基本上电压一样高 查看答案