根据《改革方案》的规定，现行国内航线的种类有（）。 A.直辖市与邻省（自治区、直辖市

在四个生态系统中，它们的非生物成分和日照状况无太大区别。其中的生物成分如下表，生态系统的稳定性最高和最低的分别是

A．①③

B．①④

C．①②

D．②③

根据《公司法》的规定，下列各项中，不属于有限责任公司监事会行使的职权的是( )。

A．检查公司财务
B．决定公司内部管理机构的设置
C．对董事的行为进行监督
D．提议召开临时股东会

非支付性电子商务是指______。

A．不需要支付费用的电子商务

B．不用现金进行支付的电子商务

C．不进行网上支付和货物运送的电子商务

D．不进行网上支付，但完成网上货物运送的电子商务

某企业1995年末的资产负债表反映，流动负债为219600元，长期负债为175000元，流动资产为617500元，长期投资为52500元，固定资产净额为538650元。该企业的资产负债率应为( )。

A．35.56%
B．32.65%
C．34.13%
D．32.49%

To compete in today's fast-paced competitive environment, organizations are increasingly allowing contractors, partners, visitors and guests to access their internal enterprise networks.These users may connect to the network through wired ports in conference rooms or offices, or via wireless access points. In allowing this open access for third parties, LANs become(6) .Third parties can introduce risk in a variety of ways from connecting with an infected laptop to unauthorized access of network resources to(7)activity. For many organizations, however,the operational complexity and costs to ensure safe third party network access have been prohibitive. Fifty-two percent of surveyed CISOs state that they currently use a moat and castle's security approach, and admit that defenses inside the perimeter are weak. Threats from internal users are also increasingly a cause for security concerns. Employees with malicious intent can launch (8) of service attacks or steal (9) information by snooping the network. As they access the corporate network, mobile and remote users inadvertently can infect the network with (10) and worms acquired from unprotected public networks. Hackers masquer-ading as internal users can take advantage of weak internal security to gain access to confidential information.

空白处（8）应选择（）

A.denial

B.virtuous

C.complete

D.traverse