求各路大侠详解这道题，谢谢啦

何小媛159753

Established companies concentrate on defending what they already have. Consequently, they tend not to be innovative themselves and tend to underestimate the effects of the innovations of others. The clearest example of this defensive strategy is the fact that___

C.a once-successful manufacturer of slide rules reacted to the introduction of electronic calculators by trying to make better slide rules
为什么选C 啊，不懂

sdcar2010

Established companies concentrate on defending what they already have. Consequently, they tend not to be innovative themselves and tend to underestimate the effects of the innovations of others. The clearest example of this defensive strategy is the fact that___

C.a once-successful manufacturer of slide rules reacted to the introduction of electronic calculators by trying to make better slide rules
为什么选C 啊，不懂

-- by 会员 何小媛159753 (2011/7/2 16:03:42)

This is a principle question. It is like a strengthen question.

a once-successful manufacturer (Established company) of slide rules reacted to the introduction of electronic calculators (innovation of others) by trying to make better slide rules (not innovative itself, underestimates others)