GRE Text Completion: ETS Fundamental-GRE填空ETS基础 - X2F4OE73X5Y4I7I8X

In the seventeenth century, direct flouting of a generally accepted system of values was regarded as ____________, even as a sign of madness. A. adventurous B. frivolous C. absurd D. impermissible E. irrational F. willful