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【简答题】
补全对话(共5小题; 每小题2分, 满分10分) Brad:   I went to Adele’s open-air concert yesterday. She is really a great singer. John:   You must have been so excited at the concert. Brad: 1 John:   Why was that? Brad:   The concert was very crowded. We all stood because there were no seats. John: 2 Brad:   Unfortunately, right beside my left and my right were two “large” people. I am short and skinny and I was like the meat in between two pieces of bread! Just like a hamburger! John:   Poor guy. 3 Brad:   Actually, I did. They were shouting and screaming crazily while I was firmly stuck between them, with my feet off the ground! My shoulders were hurt! John: 4 Brad:   It’s all right. But what made me surprised was that after the concert, the two giants asked       me whether I’d like to grab a cup of coffee. John:   Did you go with them? Brad: 5 John:   What did you have? Brad:   Hamburgers. A. I am sorry to hear that. B. Did you call the police? C. I hope you didn’t get hurt. D. Why not? We had a great dinner. E. The hospital is not far from us. F. To be honest, I didn’t feel very happy at first. G. Tell me the rest of the story.
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【多选题】计算机网络的基本组成有哪些
A.
服务器
B.
网络设备
C.
工作站
D.
网络协议
【多选题】机器最基本的组成有哪些?( )
A.
动力源
B.
控制系统
C.
执行(工作)机构
D.
检测机构
E.
传动机构
【判断题】使用信用证方式时,若投保金额按110%发票额计算有小数点时,投保单上的投保金额必须保留小数。
A.
正确
B.
错误
【多选题】下列关于证券投资组合方差的说法,正确的是( )。
A.
用来度量未来可能收益率与期望收益率的偏差程度
B.
可以通过由构成证券组合的单一证券的方差来表达
C.
证券组合的可行域在图上的横坐标由方差来表示
D.
方差的值越大,说明该证券组合的风险越大
【判断题】DNA在1mol/L NaCl中溶解度大,RNA在0.14mol/L NaCl中溶解度大。
A.
正确
B.
错误
【多选题】关于证券投资组合的方差,以下说法正确的是()。
A.
用来度量未来可能收益率与期望收益率的偏差程度
B.
可以通过由构成证券组合的单一证券的方差来表达
C.
证券组合的可行域在图上的横坐标由方差来表示
D.
方差的值越大,说明该证券组合的风险越大
【判断题】投资组合的风险可以用该组合收益率的方差来衡量,它是投资组合中各项资产收益率方差的加权平均数。 ( )
A.
正确
B.
错误
【判断题】公司企业的财务管理目标只需要争取最大利润
A.
正确
B.
错误
【判断题】使用信用证方式时,若投保金额按 110%发票额计算有小数点时,投保单上投保金额必须保留小数。
A.
正确
B.
错误
【简答题】工业机器人的控制系统的基本组成有哪些?各自起什么作用?
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