单项选择题二级反应速率常数的量纲是: A. ) s-1 B. ) mol×dm-3×s-1 C. mol-1×dm-3×s-1 D. ) mol-1×dm3×s-1
单项选择题In Sonnet 18, whom does the poet would like to praise? A. A female B. a dark lady C. a handsome single young man D. a patron
