为了给人以一种碧绿鲜嫩的色彩感觉,绿色蔬菜的盛放容器一般选用()
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热塑性塑料的主要成型方法有哪些?热固性塑料的主要成型方法有哪些?
中国古代政治制度的基本原则中两个要点和三个不可解决的矛盾是什么?
与油田公司首次订立劳动合同的,原则上不得订立无固定期限劳动合同。
A. 正确
B. 错误
You are managing an Oracle Database 11g instance.You want to create a duplicate database for testing purpose. What are the prerequisites for performing the active database duplication?()
A. The source database backup must be copied over the net for test database.
B. The source database must be run in ARCHIVELOG mode if the database is open.
C. The source database must be shut down cleanly if the database is in mounted state.
D. A net service name should be set up and a listener configured with the target as well as the source database.