GMAT

题目

GMAT
Which of thefollowing best completes the passage below?
Established companies concentrate ondefending what they already have.Consequently,they tend not to be innovativethemselves and tend to underestimate the effects of the innovations of others.The clearest example of this defensive strategy is the fact that___.
A.ballpointpens and soft-tip markers have eliminated the traditional market for fountainpens,clearing the way for the marketing of fountain pens as luxury or prestigeitems
B.a highlysuccessful automobile was introduced by the same company that had earlierintroduced a model that had been a dismal failure
C.a once-successful manufacturer of slide rulesreacted to the introduction of electronic calculators by trying to make betterslide rules
D.one ofthe first models of modern accounting machines,designed for use in the bankingindustry,was purchased by a public library as well as by banks
E.theinventor of a commonly used anesthetic did not intend t

答案

上面是CDgn的解答.只有C选项才说道了defensive strategies的例子.A一家公司减少就传统市场,创造新的价值（奢侈品）.B一家公司被引进然后失败了.C一家公司成功了然后又想再用之前的方法成功.D一家公司的产品被银行买...