项目( )是工程经济评价工作的重要组成部分,同时也是寻求合理决策的必要手段。A.独 发布时间:2018-07-18 03:47 │ 来源:www.tikuol.com 题型:单项选择题 问题: 项目( )是工程经济评价工作的重要组成部分,同时也是寻求合理决策的必要手段。A.独立型方案比较B.互斥型方案比较C.互补型方案比较D.现金流量相关型方案
题型:单项选择题 根据对话内容,从方框中选择适当的选项补全对话。选择中有两项为多余的选项。(每小题1; 满分5)A. Maybe you’re right.B. Is there anything wrong?C. I’ll try to understand her.D. She nags me about almost everything.E. That’s a good idea.F. But she doesn’t like it at all.G. Could I use your telephone, please? A: Hello, Xiao Hong!B: Hello!A: You look a little upset. 小题1: B: Yes. It’s just my mom. She always nags(唠叨)me.A: Really? What does your mother nag you about?B: 小题2: “ Get up now... Everything must be in place... Don’t forget your piano lesson...”A: Well, all the mothers like saying these words to their children.B: Also, I’m fond of pop music. 小题3: We don’t have the same interest in many things.A: 小题4: But I should say she nags you because she cares about you. You’re lucky to have such a good mother.B: I agree with you. 小题5: .A: That’s right. Understanding is important. If your mom knows that everything is fine, she will never nag. 查看答案
题型:单项选择题 墨西哥城位于19°N,海拔约2250米的盆地中,如下图,该市有2000余万人口,3.5万家工厂有约300万辆汽车。回答问题。小题1:根据其地理位置,判断该城市的气候类型为( )A.热带雨林气候B.亚热带季风气候C.热带草原气候D.热带沙漠气候小题2:墨西哥城每年11月至次年4、5月多发生严重光化学烟雾污染,主要原因有①该期间天气晴朗,光照强;且盆地地形,多逆温②受温室效应影响③汽车尾汽和生产、生活废气排放量大④该段期间多气旋活动,影响污染气体的扩散( )A.①②B.①③C.③②D.③④ 查看答案
题型:单项选择题 将39.5g含高锰酸钾质量分数为80%的固体加热(杂质不发生化学反应也不含钾元素)加热一段时间后,冷却,测得剩余固体中钾元素的质量分数为20.58%,则生成二氧化锰的质量约为A.2.9 gB.4.35 gC.8.7 gD.10.9 g 查看答案