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An expression with only one term is called monomial. Example: 3x,2x2,and 4xy are all monomials. 2x+1,x+y,3,and x+x2 are not monomials. Remember: There is no addition or subtraction in monomials. Mono means one, as in monologue. 有一部分考生认为新GRE数学具有一定的难度，这其中的原因是由于考生在复习时没有把新GRE数学的基础打牢。想要新GRE数学考好，复习的时候一定要把基本概念和重要考点都弄扎实。祝大家都能取得理想成绩! | 
