这款雪佛兰Traverse可以说是看上去力量十足，对于喜欢美式风格SUV的消费者再合适不过了 另外，Traverse还有17、18和20英寸车轮供选择，以及可获得实时交通信息的导航功能，蓝牙免持听筒电话连接等。 该车造型源于08款Malibu...
优点：i7处理器的温度是管游戏玩家都知道。本子散热本身就是台机无法比拟的。所以温度在60度左右就不错。8G内存现在基本上可以吃下60%的游戏了。预装Windows系统，不必让用户自掏腰包买系统了（一个系统一千呢，不是土豪没法啊…）。处理速度快。缺点：外观一般。玩单机游戏时加载较缓慢。电池续航能力很差。基本1小时一充电。附带的联想应用没一个用得上，还耗系统资源超多。总结：联想的品牌从未考虑过用户。实际物品比上面的信息差太多了。以后考虑买华硕，神舟的系列产品吧。但是联想有一个无法让人忽视的优点——老型的机子特别抗造。我现在还用512内存，32兆显存，2.0ghz的台机子么呢。好抗造啊。用了12年了…
隆力奇直销 Modern e-commerce security policy [Abstract] In this paper, an open Internet environment, e-commerce security threats and security needs of e-commerce security technologies, including encryption, authentication, security protocols and firewall technology, VPN technology, and on this basis a reasonable strategy for e-commerce security. [Key words] e-commerce encryption technology, authentication technology security policy With the continuous development of the Internet, e-commerce as a combination of network and commercial products, is close to people's lives, more and more people attracted attention. However, due to the openness of the Internet and the anonymity, there are a lot of inevitable security risks. In e-commerce, security is the core issue must be taken into account, the requirements to provide network security solutions. A, e-commerce security issues E-commerce in the Internet an open network environment, always a threat to security, the security threats can be divided into four broad categories: 1. The interception and theft of information: If no measures taken or encryption strength of encryption is not enough to attack through the use of various means of illegal access to confidential user information. 2. The distortion of information: the attacker using various technologies and means of information on the network mid-course correction, concurrent to the destination, thereby undermining the integrity of information. 3. Information counterfeiting: the attacker through the network to decrypt data or business law information, pseudo-legal users or send fake messages to deceive their customers. 4. Transaction repudiation: refers to the transaction or both unilateral repudiation of the transaction. E-commerce security threats faced by the emergence of electronic commerce has led to the demand for security, including confidentiality, integrity, authentication and non-repudiation, validity of five aspects. Second, e-commerce security technology For e-commerce security technologies, including encryption, authentication technology and e-commerce security protocols, firewall technology. 1. Encryption technology In order to ensure the security of data and transactions to prevent fraud, to confirm the true identity of the transaction between the two sides, e-commerce encryption technology to be used, encryption technology means that by using the code or password to protect data security. For data encryption as an express, express, after effects of a certain encryption algorithm, to convert ciphertext, we will be expressly for the ciphertext for this process is known as encryption, to ciphertext by the decryption algorithm output express after the formation of this a process known as decryption. Encryption algorithm used as the key parameters. The longer the key length, the space key, and traverse the key space, the more time spent, the smaller the possibility of deciphering. Encryption technology can be divided into two categories: symmetric and asymmetric encryption technology, encryption technology. Symmetric encryption technology, data encryption standard DES (Data Encryption Standard) algorithm for a typical representative. Usually non-symmetric encryption technology to RSA (Rivest Shamir Adleman) algorithm to represent. 2. Authentication Commonly used security authentication technology are: (1) digital signature. Signature is used to ensure the authenticity of documents, the validity of a measure, as to produce the same as handwritten signatures. Ways is to hash function and public key algorithm combining sender text from the message generates a hash value, and use their own private key to encrypt the hash value to form a sender's digital signature; then this digital signature as the message text of the annex and the reported message to send to the receiver; message from the receiver to receive the first message in the original hash value is calculated, and then using the sender's public key to attached to the message to decrypt the digital signature; If these two the same hash value, then the recipient will be able to confirm the digital signature is the sender. (2) digital certificates. CA digital certificate is issued for the identity of the parties to the transaction documents, it is a digital signature by the CA, including the applicant a certificate (public key owner) personal information and public key files. Based on public key system (PKI) digital certificate is used to verify both the identity of e-commerce transaction security tool, since it was made by the Certificate Authority Center digital signature, so that no third parties can not modify the contents of the certificate. Only the parties to apply for any transaction to the appropriate digital certificate in order to participate in the security of e-commerce transactions on the Internet. (3) digital time stamp. In order to prevent transactions in the electronic document signed by the time the information is modified, the digital time-stamp provided by the corresponding security. Digital Time Stamp Service (DTS) is provided by specialized agencies. Digital Time Stamp is an encrypted certificate after the formation of the document, which includes three components: the documents need to add time stamp Abstract; DTS document received date and time; DTS digital signature institutions.
这个C4应该是指aircross（毕加索）吧？ 不然放在suv里面很奇怪。 4008（aircross）不错 外观不一样 看个人爱好 就是现在不合算 贵 斯巴鲁也就那一回事 入门suv还是看空间视野外观顺便加个安全好了 动力操控什么的不可强求。。。。。。 后面两个不说了 一个不是suv 另一个还没上市 还是建议去试驾吧 个人感觉4008（C4）好
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