The slogan "What goes up must come down" was so universally accepted by economists that it was considered---.

A.a conjecture
B.an axiom
C.a fad
D.a testimonial
E. an argument

正确答案: B

解析:
此题型为近义考点，slogan被广泛接受以至于被视为----，显然空白出填写单词应具有真理，公理的意思，故选B。
难度系数 : 中

词汇积累 ：
conjecture n.推测 the formation of conclusions from incomplete evidence; guess.
axiom n.格言; 定理 a generally accepted proposition or principle, sanctioned by experience; maxim.
fad n.癖好; 怪念头 personal idiosyncrasy or whim.
testimonial n.证明书 a recommendation of the character, ability, etc.