If the salvor has carried out salvage operations in respect of a vessel which by itself or its cargo threatened damage to the environment and()a reward under Article 13 at least equivalent to the special compensation assessable in accordance with this Article,he shall be entitled to special compensation from the owner of the vessel equivalent to his expenses as herein defined.
A. has earned
B. has failed to earn
C. has rendered
D. has failed to render
You suspect unauthorized data manipulation language (DML) operations on a particular table. Youwant to track users who are performing the transactions and the values used in the transactions. You alsoplan to transfer these values to another table for analysis. How would you achieve this()
A. by using triggers
B. by using Data Pump
C. by using external tables
D. by using anonymous PL/SQL block
井、坑、孔、洞或沟(槽),应覆以与地面齐平而坚固的盖板。检修作业,若需将盖板取下,应设临时围栏,并设置警示标识,夜间还应设黄灯示警。
A. 正确
B. 错误
患者,男,60岁。上颌前牙固定修复5年,现出现松动,咬合疼痛。口腔检查:左上2缺失,左上123烤瓷固定桥修复,左上13为烤瓷全冠固位体,边缘均不密合。左上1远中和左上3的近中邻面可探及深龋,左上3叩诊(++),牙龈红肿,无牙周袋。余牙健康,咬合正常。原固定修复体松动原因是()
A. 原固定修复体破损
B. 原固定修复体边缘不密合
C. 牙龈炎
D. 牙周炎
E. 基牙预备不良