题目

 多数有机物都可以燃烧而发生氧化反应。下列有机物完全燃烧时，生成的CO与HO的物质的量相等的是 A. 甲烷    B. 乙烯    C. 苯    D. 乙醇 答案：B His collection of ancient pots, old uniforms of the kings and splendid wedding dresses of royal family ________ a small fortune． [　　] A． are worth B． is worthwhile C． is worth D． are worthwhile