题目内容

(六) 某可修产品发生5次故障,故障前工作时间(单位:h)分别为:516,178,348,465,493。 该产品平均故障问隔时间MTBF=______。

A. 300
B. 400
C. 420
D. 450

查看答案
更多问题

某教授在名为“XXXX数字图书馆”的网站上发现了自己的作品。这些作品被放上网络向公众传播,他对此事并不知情,也根本没有向该网站做出任何授权。则该网站的做法是否侵权 (12) ,在该方面我国相关的法律文件是 (13) 。

A. 音像制品管理条例
B. 软件保护条例
C. 知识产权保护法
D. 著作权法

[听力原文]11-20Spot DictationIt was raining heavily as I was walking up the hill towards the station at six o’clock on a Saturday morning. At this early hour there wasn’t much traffic and there weren’t many people in sight. Just as I was crossing the road near the top of the hill, a car came round the corner. It was travelling very fast and the driver was obviously having difficulty in controlling it. Suddenly it swerved violently, skidded on the wet road, hit a lamp - post and turned over.At once Iran to the car to assist the driver, but he was unconscious and there was a lot of blood on his face. A young woman hurried into the station and phoned for an ambulance while I took care of the driver. A number of other people gathered round the car, but there wasn’t a great deal we could do. A policeman arrived a few minutes later and asked me a lot of questions about the accident. Shortly afterwards the man came round, and he was groaning quietly when the ambulance arrived at high speed and rushed him away to hospital.On Monday morning I went to the hospital to inquire about the man. They told me that his injuries were not serious after all and that be was rapidly getting over the effects of the accident.A Road AccidentIt was raining (11) as I was walking up the hill towards the station at six o’clock on a Saturday morning. At this early hour there wasn’t much (12) and there weren’t many people in sight. Just as I was (13) the road near the top of the hill, a car came round the (14) . It was travelling very fast and the driver was (15) having difficulty in controlling it. Suddenly it swerved (16) , skidded on the wet road, hit a lamp -post and turned over.At once I ran to the car to (17) the driver, but he was unconscious and there was a lot of blood on his face. A young woman hurried into the station and phoned for an ambulance while I took care of the driver. (18) . A policeman arrived a few minutes later and asked me a lot of questions about the accident. (19) .On Monday morning I went to the hospital to inquire about the man. (20) . 11()

档案主要是从公文转化而来的,今天的档案是昨天的公文。 ( )

A. 对
B. 错

(八) 某公司在承建一个项目时,使用了网络图对项目进度进行管理。 在图中,绘制者使用了不少虚箭条,它代表该项作业______。

A. 不存在
B. 可有可无
C. 不花时间
D. 被取消了

答案查题题库