题目内容

作业人员有权拒绝违章指挥和强令冒险作业。

A. 正确
B. 错误

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PLC输出接口能直接驱动小功率交、直流负载的是()。

A. 晶体管型
B. 晶闸管型
C. 继电器型
D. 晶闸管+继电器

根据《工伤保险条例》,企业缴纳工伤保险费的数额与()有关。

A. 单位职工工资总额
B. 单位缴费费率
C. 单位职工人数
D. 单位营业额

作业人员在安全人员的监管下,可以听从违章指挥和强令冒险作业。

A. 正确
B. 错误

You work as a database administrator for Supportcenter.cn. Because of space constraints, you decided to manually shrink the table. You executed the ALTER TABLE ....SHRINK SPACE statement to shrink the space and you receive an error as follows: ERROR at Line 1: ORA-10635: Invalid segment or tablespace type What could be the reason? ()

A. The table is partitioned
B. The table name is wrong.
C. It is an index-Organized table (IOT)
D. The table is stored in locally managedtablespace.
E. The table is stored in atablespacewhere segment space is managed manually.

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