(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.

102（）

A.avoiding

B.clipping

C.choosing

D.deciding

E.dissolving

F.ensuring

G.evolving

H.implementing

I.Knowing

J.solving

抗生素相关性腹泻（AAD）一般不包括（）

A.长期应用广谱抗生素致肠道菌群失调而产生的肠炎

B.金黄色葡萄球菌肠炎

C.鼠伤寒沙门菌小肠结肠炎

D.伪膜性肠炎

E.真菌性肠炎