判断正(T)误(F)
1．Roget's Thesaurus was written by the scientist and doctor Peter Roget.( )
2．Roget devised a system of thinking about the world which contained six classes of meanings.( )
3．An essential part of Roget's Thesaurus is the new word addition.( )
4．No newer dictionaries of synonyms are quicker and easier to use than Roget's Thesaurus.( )
【答案】 1.T 2.T 3.F 4.F
