题目内容

You work as a database administrator for Supportcenter.cn. When you tried to connect to the database, you received the following error: ERROR: ORA-12541:TNS:no_listener You found that the listener is not running on the server, so you issued the following command in the Listener Control utility to start the listener. lsnrctl>START What statement is true?()

A. It would attempt to start the default listener
B. It would start the most recently created listener.
C. It would display an error with a message asking for the listener name to be specified.
D. It would show you a list of listeners and prompts for the listener name that you want to start.

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什么是环境指标?

斜肋骨是指()。

A. 在船的首尾端成放射状设置的肋骨
B. 在船中成放射状设置的肋骨
C. 在机舱成放射状设置的肋骨
D. 在货舱成放射状设置的肋骨

调车机车鸣示连续短声为()信号。

A. 起动注意
B. 警报
C. 召集
D. 紧急停车

货运单一式()联。

A. 三
B. 六
C. 八
D. 五

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