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48.Why did M.S.Hershey start the production of chocolate bars?

• A、He was deeply impressed by the Columbian Exposition.

• B、He realized that it was possible for chocolate to become popular.

• C、There was nothing to produce in his factory in Lancaster.

• D、He was interested in the chocolate machinery displayed at the fair.

Directions:In each of the following groups of words,there are four underlined letters or let-ter combinations marked A,B,C and D.Compare the underlined parts and iden-tdtify the one that is different from the others in pronunciation.Mark your answerby blackening the corresponding letter on the Answer Sheet

• A、actress

• B、business

• C、excess

• D、endless

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