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[填空题] Are Improvements Worth Paying for
As goods and services improved, people were persuaded to spend their money in changing from old to new, and found the change worth the expense. When an airline equipped itself with jets, for example, its costs and therefore airfares would (0) , but the new planes meant such an improvement that the higher cost was justified. A new car or wireless washing machine, electric kettle made life so much more comfortable than the old one that the high cost of replacement was amply (21). Manufacturers still cry their wares as persuasively as (22) but are the improvements really worth paying for In many fields things have now reached such a high standard of performance that (23) progress is very limited and very, very expensive. Airlines, for example, go to enormous expense (24) buying the latest prestige jets, in which vast research costs have been (25) on relatively small improvements. If we scrape these vast costs we might lose the ch
A. A.replaced
B.regained
C.resigned
D.repaid