Which substitution variable would you use if you want to reuse the variable without prompting the user each time?（）..

第1题

A、fire ax B、flashlight C、rigid helmet D、flame safety lamp

第2题

A、& B、ACCEPT C、PROMPT D、&&

第3题

A、A. & B、B. ACCEPT C、C. PROMPT D、D. &&

第4题

A、Steel brush B、Fine emery cloth or steel wool C、A section of the removed compression ring D、A case hardened scraper

第5题

A、substitution variables B、replacement variables C、prompt variables D、instead-of variables E、This feature cannot be implemented through iSQL*Plus.

第6题

A、Substitution variables B、Replacement variables C、Prompt variables D、Instead-of variables E、This feature cannot be implemented through /SQL*Plus.

第7题

A、Substitution variables B、Replacement variables C、Prompt variables D、Instead-of variables E、This feature cannot be implemented through /SQL*Plus

第8题

A、Substitution variables B、Replacement variables C、Prompt variables D、Instead-of variables E、This feature cannot be implemented through /SQL*Plus.

第9题

Which substitution variable would you use if you want to reuse the variable without prompting the user each time?（）