更多“出口许可证有效期为()，有效期截止时间不得超过()。”相关的问题
甲施工单位向乙银行申请贷款200万元。甲提交了丙汽车制造厂和丁市公安局各自为其出具的还款付息保证书。甲因经营不善，造成严重亏损，不能按期还本付息。甲与乙经过协商，达成延期两年还款协议，并通知了保...甲与乙签订的有效合同属于（）。
A．单务合同
B．实践合同
C．双务有偿合同
D．无名合同
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An industrial society, especially one as centralized and concentrated as that of Britain, is heavily dependent on certain essential services: for instance, electricity supply, water, rail and road transport, and harbors. The area of dependency has widened to include removing rubbish, hospital and ambulance services, and, as the economy develops, central computer and information services as well. If any of these services ceases to operate, the whole economic system is in danger. It is this economic interdependency of the economic system which makes the power of trade unions such an important issue. Single trade unions have the ability to cut off many countries’ economic blood supply. This can happen more easily in Britain than in some other countries, in part because the labor force is highly organized. About 55 percent of British workers belong to unions, compared to under a quarter in the United States. For historical reasons, Britain’s unions have tended to develop along trade and occupational lines, rather than on an industry-by-industry basis, which makes a wages policy, democracy in industry and the improvement of procedure for fixing wage levels difficult to achieve. There are considerable strains and tensions in the trade union movement, some of them arising from their outdated and inefficient structure. Some unions have lost many members because of their industrial changes. Others are involved in arguments about who should represent workers in new trades. Unions for skilled trades are separate from general unions, which mean that different levels of wages for certain jobs are often a source of bad feeling between unions. In traditional trades which are being pushed out of existence by advancing technologies, unions can fight for their members’ disappointing jobs to the point where the jobs of other union members are threatened or destroyed. The printing of newspapers both in the United States and in Britain has frequently been halted by the efforts of printers to hold on to their traditional highly-paid jobs. Trade unions have problems of internal communication just as managers in companies do, problems which multiply in very large unions or in those which bring workers in very different industries together into a single general union. Some trade union officials have to be re-elected regularly; others are elected, or even appointed, for life. Trade union officials have to work with a system of "shop stewards" in many unions, "shop stewards" being workers elected by other workers as their representatives at factory or works level. (411 words)
A．To point up the importance of the trade union power.B．To outline in brief the great scale of essential services.C．To illustrate the danger in the whole economic system.D．To bring out a centralized and concentrated industrial society.
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人们开始关注终极关怀问题是哲学产生的条件。
A.对 B.错
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致病行为模式中A型行为模式者的行为特征是容易压抑﹑克制。
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何首乌的功效是（）
A.补益精血，润肠通便 B.补益精血，滋阴润肺 C.补益精血，解毒，截疟 D.补益精血，解毒，截疟，润肠通便 E.补益精血，解毒，截疟，活血止痛
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用于治疗痛风的药物有（）
A.丙磺舒
B.秋水仙碱
C.别嘌醇
D.保泰松
E.对乙酰氨基酚
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设沿海地区饱和软黏土地基中一基坑深15m，且由于场地限制，基坑只能竖直或接近竖直开挖，下列()基坑支护方式最合适。
A.桩锚结构
B.地下连续墙加内支撑
C.悬臂式护坡桩
D.土钉支护
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按运输方式分类集装箱可分为联运集装箱、海运集装箱、铁道集装箱、空运集装箱。
A . 对B . 错
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欲用统计图表示某市2000年和2010年不同性别高血压的患病情况，应用( )
A.复式条图 B.单式条图 C.百分条图 D.直方图
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OSI模型中物理层的作用是保持应用程序之间建立连接，并规定程序之间数据传输规则。
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【背景材料】某工程项目，业主通过招标与甲建筑公司签订了土建工程施工合同，包括A，B，C，D，E，F，G，H等8项工作，合同工期360天。业主与乙安装公司签订了设备安装施工合同，包括设备安装与调试工作，合同工期180天。通过相互协调，编制了如图4-2所示的网络进度计划。 该工程施工过程中发生了以下事件。 事件一：基础工程施工时，业主负责供应的钢筋混凝土预制桩供应不及时，使A工作延误7天。 事件二：B工作施工后进行检查验收时，发现一预埋件埋置位置有误，经核查，是由于设计图纸中预埋件位置标注错误所致。甲建筑公司进行了返工处理，损失5万元，且使B工作延误15天。 事件三：甲建筑公司因人员与机械调配问题造成C工作增加工作时间5天，窝工损失2万元。 事件四：乙安装公司进行设备安装时，因接线错误造成设备损坏，使乙安装公司安装调试工作延误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。 如果合同中约定，由于业主原因造成延期开工或工期延期，每延期1天补偿施工单位6000元，由于施工单位原因造成延期开工或工期延误，每延误1天罚款6000元。计算施工单位应得的工期与费用补偿各是多少？
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下列有关人类基本需要各层次之间关系的陈述，正确的是
A . 人们满足各层次需要的方式基本相同B . 生理需要是最低层次的需要，可延缓给予满足C . 满足较高层次的需要对每个人来说意义有所不同D . 人的各基本需要层次之间相对独立，没有相互作用
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开口于舌下阜的管道是（）
A.舌下腺大管和颊腺管
B.下颌下腺管和舌腺管
C.腮腺导管和舌下腺小管
D.舌下腺大管和下颌下腺管
E.唇腺管和腮腺管
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真核生物染色体基因组是（）
A.线性双链DNA分子
B.环状双链DNA分子
C.线性单链DNA分子
D.环状单链DNA分子
E.线性单链RNA分子
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