【题目】The ______ difference between Sam and me was the fact that I took life seriously.
A.officialB.potentialC.essentialD.confidential
在线课程【答案】C
【解析】
考查形容词词义辨析。句意：我和Sam最本质的区别就是我认真对待生活。A. official官方的；B. potential潜在的；C. essential本质的，基本的；D. confidential机密的。结合后文difference 可知短语essential difference表示“本质区别”。故选C。