题目内容

下列有机物常温下是液体的是

A. 甲烷
B. 甲醇
C. 甲醛
D. 甲醚

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下列不能和饱和的NaHSO3溶液生成沉淀的是

A. 丙酮
B. 丙醛
C. 环己酮
D. 苯乙酮

CH3CH(CH3)CHO该有机物的名称是

鉴别苯乙酮和苯甲醛用()试剂,现象是()。

Which of the following is provided by a trial balance in which total debits equal total credits?

A. Proof that no transaction was completely omitted from the ledger during the posting process.
B. Proof that the correct debit or credit balance has been computed for each account.
C. Proof that the ledger is in balance.
D. Proof that transactions have been correctly analyzed and recorded in the proper accounts.

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