弹性成本预算编制方法中的图示法，其缺点是（） ["比较麻烦","准确性不高","用编好的预算去考核实际发生的成本，显然是不合理的","没有现成的预算金额"]
简述中毒型菌痢体克型的治疗原则。
A company is installing IP phones. The phones and office computers connect to the same device. To ensure maximum throughput for the phone data, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffic. What is the best network device to which to directly connect the phones and computers, and what technology should be implemented on this device?（） ["hub","router","switch","STP","subinterfaces","VLAN"]
物种多样性产生的根本原因在于物种的形成与不断分化。
Which three configuration tasks are required to successfully deploy NBAR to recognize TCP and UDP stateful protocols？（） ["Over leased lines，use the multilink ppp command to reduce latency and jitter，and to create Distributed Link Fragmentation and interleaving.","Use the service-policy command to attach a traffic flow to an interface on the router.","Use the ip rsvp bandwidth command to set a strict upper limit on the bandwidth NBAR uses，and toguarantee admission of any flows.","Use the policy-map command to define one or more QoS policies （such as shaping，policing，and so on） to apply to traffic defined by a class map.","Use the random-detect dscp command to modify the default minimum and maximum thresholds for the DSCP value.","Use the class-map command to define one or more traffic classes by specifying the criteria by which traffic is classified."]
人际吸引
