题目内容

一般来说,企业的广告费属于()。

A. 变动成本
B. 混合成本
C. 约束性固定成本
D. 酌量性固定成本

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条件编译命令只在编译时才有作用。

A. 正确
B. 错误

In your multitenant container database (CDB) containing pluggable database (PDBs), you granted theCREATE TABLE privilege to the common user C # # A_ADMIN in root and all PDBs. You execute thefollowing command from the root container:SQL > REVOKE create table FROM C # # A_ADMIN;What is the result?()

A. It executes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in root only.
B. It fails and reports an error because the CONTAINER=ALL clause is not used.
C. It excludes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in root and all PDBs.
D. It fails and reports an error because the CONTAINER=CURRENT clause is not used.
E. It executes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in all PDBs.

海图上的空白处表示该处水域无碍航物。

A. 正确
B. 错误

油气长输管道工程无损检测应符合SY/T4109《石油天然气钢质管道无损检测》的规定,射线检测及超声波检测的合格等级应符合下列哪项规定:()。

A. 输油管道设计压力小于或等于6.4MPa时合格级别为Ⅲ级
B. 输油管道设计压力大于6.4MPa时合格级别为Ⅱ级
C. 输气管道设计压力小于或等于4MPa时,一、二级地区管道合格级别为Ⅲ级
D. 输气管道设计压力小于或等于4MPa时,三、四级地区管道合格级别为Ⅲ级
E. 输气管道设计压力大于4MPa时合格级别为Ⅱ级

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