(100) whether to go with a shared or switched fast LAN technology once you start to max out your shared Ethernet of token-ring LAN is tough call. Users and analysts involved in (101) high-speed LANs have learned the benefits of each. However, there are trade-offs to each, and (102) which fast LAN technology to choose is critical for (103) network performance problems and (104) costly purchasing mistakes.

101（）

A.avoiding

B.clipping

C.choosing

D.deciding

E.dissolving

F.ensuring

G.evolving

H.implementing

I.Knowing

J.solving

今天的江苏、浙江等省级区划制度，开始于

A．秦朝

B．东汉

C．隋朝

D．元朝