To limit the number of the visitors, the zoo is thinking about the________of the ticket price.

A.rising B.raising C.reducing D.adding

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Do Encyclopedias Know Everything?

LONG BEFORE Wikipedia or Encyclopedia Britannica (《大英百科全書》), there was Pliny the Elder. He was a first-century Roman researcher. His assistants (助理) read to him while he ate dinner and while he bathed. All the while, Pliny took notes. He even considered walking a waste of time. His assistants carried him around Rome in a chair while he read.

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