[单选题]化工生产中,冷,热流体的传热往往通过换热器的间壁进行,两种流-我要搜题网

[单选题] 第五套人民币正背互补对印图案使用（）方式印刷。Ｂ
A.A、凹印
B.B、胶印
C.C、凸印
D.D、丝印

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[单项选择]固有心率是指（）
A. 白天的平均心率
B. 夜间的平均心率
C. 24小时的平均心率
D. 排除自主神经系统对窦房结自律性的影响后，窦房结固有的自律性
E. 24小时最慢的心率

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[判断题]267．集体土地使用权可用作个人信贷业务抵押物。（）
A.正确
B.错误

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[单项选择]投资决策各阶段投资估算误差要求最小的是( )。
A. 初步可行性研究阶段
B. 详细可行性研究阶段
C. 项目规划阶段
D. 项目建议书阶段

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[多项选择]根据我国营业税法律制度的规定，下列行业中征收营业税的有( )。
A. 交通运输业
B. 建筑业
C. 金融保险业
D. 委托加工业

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[单选题]安全责任清单主要包括三部分内容，分别是：（）。
A.安全职责履责要求履责记录
B.安全职责履责记录履责成效
C.履责要求履责内容履责记录
D.履责内容履责要求履责记录

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[填空题] A
Market awareness of the MP3 has exploded and the retailer who specializes in MP3 is seeing growth like never before. Admittedly, some customers buy their first MP3 in the supermarket, but for advice, add-ons and particular services they turn to the specialist. There are a large number of MP3 retailers and I can’t help but feel the market only has room for four players. Undoubtedly, customer service is the factor that differentiates operators and I think this year we will probably see rationalization in the sector.
B
When I first started in the industry, MP3 were retailing at a thousand pounds and were as large as box files. Now, prices are constantly being driven down, because they are getting more compact and also there is intense competition between the MP3 providers. This will continue, and while retail dealers’ profits will be affected dramatically, MP3 providers will have to generate more revenues by offering more services to the MP3 user.

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[简答题] I was talking recently to a friend who teaches at MIT. His field is hot now and every year he is inundated(淹没) by applications from would-be graduate students. "A lot of them seem smart," he said. "What I can’’t tell is whether they have any kind of taste." You don’’t hear that word much now. And yet we still need the underlying concept, whatever we call it. What my friend meant was that he wanted students who were not just good technicians, but who could use their technical knowledge to design beautiful things. For those of us who design things, these are not just theoretical questions. If there is such a thing as beauty, we need to be able to recognize it. We need good taste to make good things. Instead of treating beauty as an airy abstraction, to be either blathered about or avoided depending on how one feels about airy abstractions, let’’s try considering it as a practical question: how do you make good stuff If you mention taste nowadays, a lot of people will tell you t

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[多项选择]出版社计划管理的作用有（）等。
A. 优化出书结构
B. 合理确定出书规模
C. 提高员工素质
D. 全面整合营销
E. 协调全社行动

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[单项选择]以下哪一项不属于票据汇票正面记载的7个必须事项（）。
A. “汇票”的字样
B. 确定的金额
C. 收款人签章
D. 出票人签章

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[单选题]图是（）紧线法示意图
A.二线
B.三线
C.四线
D.五线

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[判断题]增加管壳式换热器的管程数可得到较大的平均温差,从而可强化传热。
A.正确
B.错误

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[填空题]电空混合实施原则是电制动优先，（）制动作为制动力不足时的补充，电制动与空气制动实时协调配合的混合制动原则。

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[判断题] 更换电能表时应先断开电压回路,待电能表显示屏黑屏确认无电压后才能继续短接电流回路,拆除电能表。
A.正确
B.错误