题目将CH3CH=CHCHO氧化成CH3CH=CHCOOH选择下列哪种试剂较好?( )A. 酸性KMnO4B. K2Cr2O7 + H2SO4C. 吐伦试剂D. PCC将CH3CH=CHCHO氧化成CH3CH=CHCOOH选择下列哪种试剂较好?( )A. 酸性KMnO4B. K2Cr2O7 + H2SO4C. 吐伦试剂D. PCC题目解答答案C. 吐伦试剂