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化合物CO、HCOOH、HOOC-CHO(乙醛酸)，分别燃烧时，消耗O 2 和生成CO 2 的体积比都是1:2，后两者的化学式可以看(CO)(H 2 O)和(CO) 2 (H 2 O)，也就是说，只要分子式符合[(CO) n (H 2 O) m ]（n和m为正整数）的各种有机物，它们燃烧时消耗O 2 和生成CO 2 的体积比都是1:2。现有一 些含C、H、O三种元素的有机物，它们燃烧时消耗氧气和生成CO 2 的体积比是3:4。 (1)这些有机物中，相对分子质量最小的化合物的分子式是 _______________。 (2)某两种碳原子数相同的有机物，若它们的相对分子质量分别是M(A)和M(B)[M(A) (3)在这些化合物中，有一种化合物，它含有两个羧基。取 0.2625g此化合物，恰好能跟25mL0.1000mol·L -1 NaOH溶液完全中和，由此计算得知，该化合物的相对分子质量应该是____________，并可推导出它的分子式应是_____________。
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【多选题】Which sentences are metonymy? (multiple choice)
A.
The kettle boils.
B.
The room sat silent.
C.
Lend me your ears, please.
D.
I had the muscle, and they made money out of it.
【简答题】The room sat silent.
【单选题】We are expecting 150 guests at the party, _______.
A.
more and more
B.
more or less
C.
what's more
D.
moreover
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【单选题】Which of the following sentences uses metaphor?
A.
I am hungry as a horse.
B.
All the world is a stage.
C.
The room sat silent.
D.
I am as beautiful as rose
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