You have created a script in the recovery catalog called backup_database. Which of the following commands would successfully execute that script?()
A. run { open script backup_database; run script backup_database }
B. run { engage script backup_database; }
C. run { run script backup_database; }
D. Run { execute script backup_database; }
E. The name backup_database is an invalid name for an RMAN script. Trying to run it from RMAN would result in an error.
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当起重机额定电压不大于500V时,潮湿环境中电气线路对地的绝缘电阻值不低于0.4MΩ;
A. 正确
B. 错误
磨煤机断煤时,磨煤机入口负压(),出口负压及压差(),排粉机出口负压()。
A. 增大;减小;增大
B. 减小;增大;减小
C. 减小;增大;先减小后增大
血栓与止血的试验众多,适用于不同疾病的诊断与鉴别诊断。对ITP最有诊断意义的是
A. BT测定
B. 血小板表面糖蛋白抗体测定
C. 血块收缩不良
D. 血涂片上血小板分散不聚集
E. 血小板计数,束臂试验,BT