不能解决的

It is proved that if'sparse NP complete sets under polynomial-time Turing reductions exist'then 'SAT is polynomial-time non-adaptively search reducible to decision', and that if 'P is not equal to NP'then either'SAT is not polynomial-time non-adaptively search reducible to decision'or'SAT is not polynomial-time truth-table reducible to bounded approximable sets', and that if'P is not equal to NP'then'sparse complete sets for NP under polynomial-time disjunctive reductions do not exist'.

因为用现有的证明技术不可能绝对地解决这个假设，本文研究了这个假设与其他关于SAT结构性质的假设之间的关系，证明了如果'NP有多项式时间图灵归约下的稀疏完全集'则'SAT是多项式时间并行地搜索归约为判定'，以及如果假设'P不等于NP'，则要么'SAT不是多项式时间并行地搜索归约为判定'，要么'SAT不能用多项式时间真值表归约归约为有界可近似集'。

In this paper, dry-type transformers 10kV-circuit the development of a load voltage change-over switch, which uses advanced power electronics and opto-mechatronics technology, with the non-excitation voltage regulating transformer is converted to on-load tap changer functions, solve of the non-excitation voltage transformer without power interruption can not adjust voltage, voltage regulator is not convenient, and the shortcomings in time, and have the best communication interface

本文针对10kV 无励磁干式变压器研制一种有载调压转换开关，它采用先进的电力电子技术和光机电一体化技术，具有把无励磁调压变压器转换为有载调压变压器的功能，彻底解决了无励磁调压变压器不停电不能调整电压、调压不方便和调压不及时的弊病，并具备完善的通信接口，可方便地嵌入配电系统的电压无功控制和电力监控中，提高了变压器供电系统的自动化水平。

If two parties want to sign a contract C over a communication network, they must "simultaneously" exchange their commitments to C Since simultaneous exchange is usually impossible in practice, protocols are needed to approximate simultaneity by exchange partial commitments in a piece by piece manner The party of secondly sending commitments may have a slight advantage; a "fair" protocol must keep this advantage within acceptable limits The protocol for signing a contract is improved based on the research result of secure multiparty computation In this protocol, the parties obliviously transfer the signed bit and the committed bit; the other parties can prove the validity of this bit based on the confirming sub protocol, but he can't gain more information about the whole signature by accumulating the signed bit or the committed bit After the parties exchange the whole signed information, they declare the commitment about the signature respectively, and gain the whole signature of the other party At this moment, the party doesn't care about the advance quit of the other party, because he has gained the whole signed information Finally, it is proved that this protocol is quit fairness

作者中文名：曲亚东；侯紫峰；韦卫摘要：在网络环境中解决合同签订问题需要保证信息交换的同时性，以前提出的协议都会给第2个发送者部分计算特权，利用不经意传输协议则可以解决这个问题。在协议执行过程中，参与者将合同的签名位以及他对签名位的承诺不经意传输给对方，对方可以利用验证子协议证明该位的有效性，但是他却不能通过位交换次数的增加获取更多的完整签名的信息；在完成签名位的交换之后，参与者分别宣布承诺，并得到对方对合同的完整签名；在宣布承诺时，协议参与者已经获得全部的签名内容，要么是签名位，要么是对方对该位的承诺，因此参与者并不需要担心对方提前终止协议。在文章的最后利用多方安全计算的结论证明了该协议满足终止公平性。

When researchers usually select problems for "Artificial Intelligence" to solve, they return to a handful of favorites: Can a machine outplay a human at a game like chess or poker?

一般，在研究人员挑选要让"人工智能"去解决的问题的时候，他们还是会去找那一些自己最喜欢的问题：机器在象棋或扑克上能不能超过人类？

God join'd my heart and Romeo's, thou our hands; And ere this hand, by thee to Romeo seal'd, shall be the label to another deed, or my true heart with treacherous revolt turn to another, this shall slay them both: Therefore, out of thy long-experienced time, give me some present counsel, or, behold, 'twixt my extremes and me this bloody knife shall play the umpire, arbitrating that which the commission of thy years and art could to no issue of true honour bring.

既然上帝把我的心和罗密欧的心结合在一起，您也把我和他的手连到了一起；如果我的这只手（这是您秘密把它给了罗密欧的）将成为另一婚礼的证据，或者，如果我真诚的心因为叛变而转向他人，我就先用这把小刀把手和心一起杀死。所以，您现在就凭长期的阅历给我一些指教吧；要不您就眼看着我用血淋淋的刀在我的生与死之间（或直译"我的极端与我之间"）充当仲裁者，解决您的阅历与才干不能光荣解决的问题。

First .the soeaking of English is far most important that all other difficulties .learning a language takes a long time and a lot of heart ship It's not easy so can we get most of chinese to speak English before 2008? It needs us to try and practive very hand .

首先，在所有解决的问题中，跨越英语口语这一暗管至关重要学会一门语言的关键在与坚持不懈，我们到能不能做到让大多数国人在2008年到来之前学会说英语，这一问题需要我们不断努力和尝试。

The dissertation begins with the investigation of the fruitful research on function of debt governance in developed countries such as UK, US, Japan and Germany, and attempts to fill some important gaps in our understanding of inefficient investment controlling function, bankruptcy threat function and function of creditor's participating in corporate governance; Second, Theoretical and empirical study is done on whether three functions of debt governance can work well in state-owned listed companies. The result shows that so far the function of debt governance can't work well as expected; Third, after examining the special institutional background of China, the dissertation argues, grounded on the research results, that the essential institutional reasons include creditors and debtors being "quasi" market participants, the "quasi-equal" debtor-creditor relationships and the "quasi" market rules; Finally, it comes to the conclusion that the fundamental methods to change the situation are to encourage the supervision of banks, to deepen the reform of state-owned companies and to fulfill the outside institutional requirements for guaranteeing the function of debt governance.

文章首先借鉴英美、日德等发达国家对债权治理功效的已有研究成果，总结归纳出负债抑制非效率投资功效、负债的破产威胁功效以及债权人直接介入公司治理功效；其次，分别对三大债权治理功效在我国国有控股上市公司中能否发挥作用进行理论解析和实证检验，研究发现，目前我国企业债权治理功效不能发挥应有的作用；再次，针对研究结论，从我国特有的制度背景出发，分析其症结，认为我国目前的债权债务双方的&准&市场主体、债权债务双方的&准&平等关系、&准&市场游戏规则是导致债权治理功效不能发挥作用的根本制度原因；最后，提出解决对策，认为增强银行的监督激励、深化国有企业的改革以及实现债权治理功效的外在制度要求是债权治理功效发挥作用的根本途径。

How remote viewing and remote influening can have the Matrix Reloaded If certain remote viewing systems do not reach for such an understanding, they are but crutches and fall short of allowing one to cross the stepping stone of ignorance.

如何看待和偏僻边远能影响保基移民只能在时间和空间中存在的普遍心态。环球离我们并不介意，我们不分开。因为一切互连，通过思想，以为这是唯一能解决现实的空间和时间。

Rotary press can not be resolved in small format folding or folding problems of instability in small format, this series is an original home.

解决了轮转印刷机不能折小开本或者折小开本不稳定的难题，本系列产品属国内独创。

Sensing device design for the floating problem of roughing and intermediate stands of high-speed wire mill;2. Dynamics simulation of high firing rate and floating automatic rifle

切边模来用浮动分离式结构，解决了由于零件形状的限制而不能使用常规模具结构切边的难题，为此类事件的大批量、高效串的生产提供了较好的解决方法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。