关系数据库系统中所管理的关系是（ ）。 A: 一个accdb文件 B: 若干个accdb文件 C: 一个二维表 D: 若干个二维表

用MicrosoftQuery软件建立一个ODBC数据源以便查询“Sales.accdb”数据库的过程中，应该选择下面哪个驱动程序？（）

"The sales ascend" means___? A: The sales increases. B: The sales stablize. C: The sales plummet. D: The sales drop.

International sales intensity is the Amount of international sales divided by ( )of the company.（ ） A: Total sales B: Domestic sales C: Service sales D: Abroad sales

关系数据库系统中所管理的关系是（） A: A一个*.accdb文件 B: B若干个*.accdb文件 C: C一个二维表 D: D若干个二维表

ACCESS数据库对应一个扩展名为ACCDB的文件

Net sales is calculated by A: subtracting cost of sales from sales. B: subtracting sales returns and sales discounts from sales. C: subtracting sales returns, cost of sales, and sales discounts from sales. D: subtracting gross profit from sales.

Gross profit is calculated as: A: Total sales - cost of sales - selling, general and administrative expenses - depreciation and amortization B: Total sales - cost of sales - selling, general and administrative expenses C: Total sales - cost of sales D: None of the above

A business is registered for sales tax. The sales tax rate is 20%.Sales (including sales tax) for the period are $37,200 and purchases (excluding sales tax) are $19,600.What is the balance on the sales tax control account? A: $3,920 B: $6,200 C: $3,760 D: $2,280

Alfred is registered for sales tax. He makes sales of $25,000 including sales tax and purchases goods for $7,000 excluding sales tax. The opening balance on the sales tax account was $500 credit. Sales tax is 20%.What is the closing balance on the sales tax account? A: $3,600 B: $3,000 C: $2,267 D: $3,267