问题 问答题

(四)  背景资料  业主通过招标与甲装饰公司签订了装饰合同,此项目包括A、B、C、D、E、F、G、H八项工作。业主与乙安装公司签订了设备安装施工合同。通过相互协调,编制网络进度计划,如图所示,其中K工作为设备安装与调试。  由于工艺要求,B、E、F需共用一台机械。  该工程施工过程中发生了以下事件:  事件1:业主负责供应的材料供应不及时,使A工作延误6天;  事件2:甲公司因人员与材料调配问题造成C工作增加工作时间5天,窝工损失5万元;  事件3:乙公司设备安装时,因接线错误造成设备损坏,使乙公司安装工作延误5天,损失12万元。  发生以上事件后,施工单位均及时向业主提出了索赔要求。  问题

该工程的实际工期是多少天指出实际关键线路。

答案

参考答案:(本小题4分)  实际工期为:A+D+K+F=66+30+185+83=364天(2分);  实际关键线路为:A-D-K-F或A-C-K-F(2分)。

单项选择题
单项选择题

I got a job teaching special education at a school in Coachella, California, a desert town about 170 miles from home. It was no (1) job. Street gangs (2) around the school after dark."Be careful," Dad warned me during one of my frequent weekend (3) home. He was concerned about my living (4) , but I needed to be on my own.One evening, I stayed after school to rearrange my classroom. (5) , I turned out the light and closed the door. Then I (6) toward the gate. It was (7) ! I looked around. Everyone had gone home.After (8) all the exits, I found just enough (9) to squeeze under a gate in the back of the school. Then I walked toward my car, parked in a field behind the building.Suddenly I heard voices. I (10) around and saw at least eight boys following me. (11) my pace, I reached into my shoulder bag to get my key. I (12) all over the inside of my handbag. But the key wasn’t (13) ! Dear Lord, please help me, I prayed (14) . Suddenly, my fingers touched a loose key in my purse. I didn’t even know if it was for my car, but I took it out and (15) it. It worked!I opened the door, slid in and locked it—just (16) the teenagers surrounded the car. Trembling , I started the engine and (17) away. When I returned to my apartment, the phone was ringing. It was my Dad. I didn’t tell him about my experience; I didn’t want to (18) him. "Oh, I forgot to tell you!" He said, "I had a(n) (19) car key made and slipped it into your purse—just (20) you ever need it.

第(20)空应选择()

A.even if

B.on condition that

C.in case

D.in time