一个自然群落中的一条普通食物链的顺序是（）A.自养生物→食草动物→异养生物 B.自养

下面关于AVM信号处理器描述正确的是（）。

A.AVM接收低压压气机和低压涡轮的振动传感器信号，来计算发动机的振动值。

B.AVM接收的是1号轴承振动传感器信号和N1、N2转速信号来进行发动机振动值计算。

C.AVM接收1号轴承震动传感器信号和FFCCV信号，同时接收N1和N2信号，进行计算，得出风扇、HPC、HPT和LPT4的振动值，并将这4个值平均，显示在发动机次级显示面板上。

D.AVM接收1号轴承震动传感器信号和FFCCV信号，同时接收N1和N2信号，进行计算，得出风扇、HPC、HPT和LPT4的振动值，并将这4个值中的最大值，显示在发动机次级显示面板上。

在下述关于网络管理的观点中，正确的是( )。

A．网络管理是控制一个LAN使它具有最高的效率和生产力的过程

B．网络管理是指对网络运行状态进行监控和控制，使其能够有效、可靠、安全、经济地提供服务

C．控制网络运行的成本不是网络管理的目的

D．网络管理就是网络计费管理

某T12钢工件退火时，误当作45钢而进行了完全退火，其组织和性能会发生什么变化，因该工件切削加工困难，应采用什么热处理工艺来改善之.

2016年3月，XX分局对XX市XX大厦销售的电动自行车进行抽样送检，经XX市质量技术监督检测院的检验，被抽检的两款电动车不合格（主要原因是车速和车重超标）。当事人XX市XX大厦对抽检结果在法定的15天内无异议，对处罚决定也未提起行政复议和诉讼。但该批电动车的生产商XX有限公司得知该处罚决定后，向XX工商局提起行政复议。

该案中，生产商XX有限公司享有的权利包括下列哪些（）

A.对抽检结果可单独提出异议，要求复检

B.对处罚决定不服，可单独提起行政复议

C.对处罚决定不服，可作为第三人参加行政诉讼

Public Key Infrastructure (PKI) service providers offer organizations fully integrated PKI-managed services designed to secure Intranet, Extranet, Virtual Private Network (VPN), and e-commerce applications. PKI solutions can enable a number of security services, including p authentication and non-repudiation of transactions.
eToken enables the users of PKI systems to generate and store (101) and digital certificates inside the token, creating a secure environment and allowing full portability and maximum ease of use. eToken Pro can also perform sensitive on-chip (102) operations, ensuring that users’ keys axe never exposed to the PC environment, eToken eliminates the need to store (103) and keys on a hard disk or browser file, or to transmit them across the Internet/Extranet; assuring peace-of-mind and confidence during online communications.
A digital signature is created using the private key of an individual to ensure the Validity of his request. This technology can be used to guarantee (104) of various transactions. The strength of either the authentication level or the digital signature relies on the level of protection offered to the private key. eToken Pro offers the maximum level of security, since it enables the use of the private key for signing and authenticating inside the eToken.
The most secure use of authentication involves enclosing at least one certificate with every signed message. The message (105) verifies the certificate using the CA’s public key. If the sender’s public key is legitimate, the recipient verifies the message’s signature. Digital signatures created with a private key are verified with the digital certificate containing the public key.

A．recipient

B．writer

C．sender

D．browser