从供选择的答案中，选出应填入下面叙述{｝的最确切的解答，把相应编号写在答卷的对应栏内。

　　{ A } whether to go with a shared or switched fast LAN technology once you start to maxout your shared Ethernet of token-ring LAN is tough call. Users and analysts involved in { B }high-speed LANs have learned the benefits of each. However there are trade-offs to each, and { C } which fast LAN technology to choose is critical for { D }network performance problems and { E }costly purchasing mistakes.

　　供选择的答案

　　A～E：①avoiding ②clipping ③choosing ④deciding ⑤dissolving

　　⑥ensuring ⑦evolving ⑧implementing ⑨knowing ⑩solving

　　【解析】

　　优易学网站提示参考译文：你一旦想扩大你自己的以太网或令牌环LAN的共享能力，就面临着一种选择：是用共享快速LAN技术还是交换快速LAN技术?那些已决定高速LAN的用户们和分析家们都知道，这两种技术各有其优点也都有其不足。明确选择哪一种技术是解决网络性能问题和避免购买浪费的关键。

　　【答案】A：④ B：⑧ C：⑨ D：⑩ E：①