The example of the antique cameo is used to demonstrate that ______. A: some collectors like to purchase forged pieces B: some collectors pay exorbitant prices for beautiful pieces C: some collectors prize beauty even more than authenticity D: most collectors refuse to buy from unscrupulous dealers

For baseball card collectors, Babe Ruth baseball cards from 1927 are definitely A: perfectly inelastic in demand. B: perfectly inelastic in supply. C: complements for Bobby Bonds cards. D: substitutes for Bobby Bonds cards.

6. I don't _____ stamps. My hobby is _____ coins, and I have quite a big _____. A: collect, collecting, collection B: collect, gathering, collectors C: assemble, collecting, gathering D: assemble, gathering, collection

—Why are the tax collectors so busy? —Many people prefer to have their tax forms completed by a professional rather than  [u]        [/u]   . A: do it themselves B: doing it themselves C: to do it themselves D: done by themselves