如何保养冷却塔？

根据短文内容，用适当的单词完成下面句子。

Dear Mike,

     We got your letter yesterday. Yes, we can visit you at Christmas. We thought to spend Christmas at

home, but now we are going to be with you. Jack will not be in school then. The weather in Chicago is

cold, but it doesn't matter. Sometimes we like the snow. We got our plane tickets. We will get to your city

on the 18th. We will stay with you for two weeks. Is that all right with you? We'll take our favourite

recipes (食谱), so we can have a nice Christmas dinner.

      See you soon . 

                                                                                                                                    Love

                                                                                                                                    Mom and Dad

1. This letter is from Mike's _________.

2. In Chicago, it is _________ now.

3. Mike has a brother called __________. He is in school now.

4. Mike's parents will go to his city by _________.

5. His parents will come back on _________ 31^st .

读下图,回答

(1)判断：从气温上看A地区的气温________，B地区的气温________。从地形上看，A地区的地形为________，B地区的地形为________

(2)若C在大陆、D在海洋，则此时为当地________季.

(3)若此图为气温等温线图，且C、D同在大陆，则可判断C、D两处气温有别的原因主要是________________。

近似数1.40表示的准确数a的范围是（　　）

A．1.395≤a＜1.405

B．1.35≤a＜1.45

C．1.395＜a≤1.405

D．1.35＜a≤1.45

联合库存管理JMI是在VMI的基础上发展起来的上、下游企业权利、责任平衡和风险分担的库存管理模式。

(四)
某工程公司中标承包一城市道路施工项目，道路总长15km，其中包括一段燃气管线的敷设。工程建设工期很紧。为抓紧时间，该公司很快组成项目经理部，项目部进行了临建。项目部拿到设计院提供的设计施工图决定立即开始施工，监理工程师尚未到场。开工后项目部组织人员编制了施工组织设计，其内容包括工程概况、施工方案、施工进度计划、安全措施、文明施工、环保措施以及辅助配套施工措施几个方面。编制完成后报上级审批，但上级退回要求补充完善。
整个项目实施顺利，在竣工验收前有关部门进行施工技术文件预验收时，发现项目部人员正在补填许多施工过程文件，且施工技术文件不完全。
[问题]

现场项目经理部，按常规应设立一些什么标牌