完车SQL语句：统计每年每月的信息year month amount1991 1 1.1 1991 2 1.2 1991 3 1.3 1991 4 1.4 1992 1 2.1 1992 2 2.2 1992 3 2.3 1992 4 2.4 查成这样一个结果： year m1 m2 m3 m4 1991 1.1 1.2 1.3 1.4 1992 2.1 2.2 2.3 2.4

统计每年每月的信息year month amount1991 1 1.11...ull,'1992','4',2.4);

【单选题】上海证券交易所和深圳证券交易所先后于()年和()年正式开业。 A. 1992 1991 B. 1991 1992 C. 1991 1990 D. 1990 1991

The difference between the amount of assets and the amount of liabilities is ._

What is Chargaff’s ratio? () A: In any organisms, amount of Adenine is the same as Thymine, amount of Cytosine is the same as Guanine. B: In any organisms, amount of Adenine is the same as Cytosine, amount of Thymine is the same as Guanine. C: In any organisms, amount of Adenine is the same as Guanine, amount of Thymine is the same as Cytosine.

Insured amount is the amount to be insured, normally ____ of the invoice value.

The amount you need to save depends on ( ). A: the total amount you need B: the amount you can borrow C: the amount you earn D: when you need it

The higher the standard of living and the greater the national wealth, ______. A: the greater amount of paper is used B: the greater is the amount of paper is used C: the greater the amount of paper used D: the amount of paper used is greater

The higher the standard of living and greater the national wealth, the ______. A: greater is the amount of paper is used B: greater the amount of paper is used C: greater amount of paper is used D: amount of paper is used is greater

The higher the standard of living and the greater the national wealth, the ______. A: greater is the amount of electricity is consumed B: greater amount of electricity is consumed C: amount of electricity is consumed is greater D: greater the amount of electricity consumed