【题目】Whether for a special such as an engagement or a wedding or simply as a gift, diamond rings make the ideal choice.
A. opportunity B. adjustment
C. occasion D. convenience
在线课程【答案】C
【解析】
试题分析：考查名词辨析。句意：无论是为了一个特殊场合如订婚、婚礼，还是仅仅作为一份礼物，钻戒都是理想的选择。A机会；B调整；C时刻，场合，机会；D方便，故选C。