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某电子商务公司经营办公用品，其配送中心负责向用户送货，某日有6个用户订货并要求送货。配送中心P和各用户(A、B、C、D、E、F)的位置、各用户的订货量及与配送中心的直线距离如图5-7所示 (括号内所标的是各用户的订货量，单位为吨；两点间连线上的数字为两点间的距离，单位为公里)。假设可使用的送货车辆最大载重量分别为1.5吨和2.0吨，每辆车一次运行的最大距离为85公里，则送货距离为最短的配送路线是(70)。

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(71 )Third parties can introduce risk in a variety of ways from connecting with an infected laptop to unauthorized access of network resources to(72)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(73)of service attacks or steal(74)information by snooping the network. As they access the corporate network, mobile and remote users inadvertently can infect the network with(75)and worms acquired from unprotected public networks. Hackers masquerading as internal users can take advantage of weak internal security to gain access to confidential information.

1～1000的整数(包含1和1000)中至少能被2、3、5之一整除的数共有(69)个。

某企业有独立工作的3台服务器，分别运行Web、E-mail、电子商务等业务，由1名网络工程师独立看管，1000小时内它们出故障的概率分别是0.1、0.2及0.15。那么这段时间出现机器故障不能得到及时维修的时间是(68)小时。

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甲公司将具开发的商业软件著作权经约定合法转让给乙公司，随后甲公司白行对原软件进行了改进，形成新版本后进行销售。那么，甲公司的行为(65)。