A company just hired a new plant maintenance manager, and they are concerned about the number of corrupt asset records in the present system. In future they want to prevent this from happening. When implementing the new solution, what is recommended?（）
All maintenance personnel have full access to all records.
B. All maintenance personnel have read-only access to all data.
C. Only a very limited number of personnel have full access to static data records, but all maintenance personnel are able to enter work order data.
D. Maintenance personnel should not be using the system, and should only write entries on printed work orders and hire input clerks to enter these into the system.
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孔板上游侧端面上，连接任意两点的直线与垂直于中心线平面之间的斜率应小于（）。
A. 1%；
B. 0.5%；
C. 2%；
D. 1.5%。
1900年（）创造了卫生的紧身胸衣，其特征是前面的内嵌金属条或鲸须在腹部呈平直状。
A. 萨罗特夫人
B. 皮尔•卡丹
C. 卡洛特姐妹
D. 保罗•布瓦列特
气体类危险化学品泄漏事故现场，将（）区域划分为重危区、中危区、轻危区和安全*区，并设立警戒标志。
A. 泄漏
B. 警戒
C. 救护
D. 危险
You upgraded Oracle Database 10g to Oracle Database 11g. How would this affect the existing users’ passwords？（）
All passwords automatically become case-sensitive.
B. All passwords remain non-case-sensitive till they are changed.
C. All passwords remain non-case-sensitive and cannot be changed.
D. All passwords remain non-case-sensitive until their password attribute in the profile is altered.
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