职业资格鉴定人员名册应包含()
A. 考生基本情况
B. 准考证号
C. 考试成绩
D. 证书编号
银监会或其派出机构在收集证据时,可以采取()的方法。
A. 抽样取证
B. 证据取证
C. 信访取证
D. 复查取证
加入后能够有效提高塑料弹性、可塑性、流动性,改善塑料低温脆化的助剂是()。
A. 填充剂
B. 增塑剂
C. 稳定剂
D. 润滑剂
You work as a database administrator for Certkiller .com. As a result of performance analysis, you created an index on theprod_namecolumn of the Certkiller prodtable, which contains about ten thousand rows. Later, you updated a product name in the table. How does this change affect the index?()
A leaf will be marked as invalid.
B. An update in a leaf row takes place.
C. The index will be updated automatically at commit.
D. A leaf row in the index will be deleted and inserted.
E. The index becomes invalid when you make any update