单项选择题

( )关键字用来声明游标。
A、DECLARE
B、 DEALLOCATE
C、FETCH INTO
D、CLOSE

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单项选择题

Which of the following discoveries through the use of analytical procedures would most likely indicate a relatively high risk of financial failure? （）

A．A decline in gross margin percentages.
B．An increase in the balance in fixed assets.
C．An increase in the ratio of allowance for uncollectible accounts to gross accounts receivable, while at the same time accounts receivable turnover also decreased.
D．A higher than normal ratio of long-term debt to net worth as well as a lower than average ratio of profits to total assets.

单项选择题

矿物质和维生素不能为机体提供能量。
A、正确
B、错误