钢水脱硫、磷与硅时,通过加入预处理剂,并使()与熔剂均匀混合反应来完成。
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商业银行实施有条件授信时应遵循“先落实条件,后实施授信”的原则,授信条件未落实或条件发生变更未重新决策的,不得实施授信。
A. 正确
B. 错误
下列不属于条形码技术特点的是()。
A. 可靠性强
B. 灵活实用
C. 成本低
D. 可以折叠
下列表述中不属于广义文化的是()。
A. 是与人类及人类的创造活动相联系的,是以人为中心的概念
B. 是一个历史概念,它涵盖人类历史的全过程,是一个传承发展的综合概念
C. 外延涵盖物质创造和精神创造的全部
D. 关注的不仅是全人类的普遍共性,而且更注重不同民族、阶层、集团人文精神的特点
You are a database administrator for your company. The company uses a SQL Server 2005 database that includes a table named Inventory. The table contains a column named Price. A company policy states that the value in the Price column cannot be decreased by more than 10 percent in any single database operation. Updates to the Price column are made by various means, including by using ad hoc queries. You need to ensure that this company policy is enforced. What should you do?()
A. Create a trigger that rolls back changes to the Price column that violate company policy.
B. Create a stored procedure that disallows changes to the Price column that violate company policy.
C. On the Price column, create a check constraint that requires a specified minimum value.
D. On the Price column, create a foreign key constraint to a table that contains valid prices.