Fill in the blank and multiple selection (single option) For the second-order RLC parallel, its attenuation factor [mathjaxinline]alpha { m{ = }}\_\_\_\_\_[/mathjaxinline], free oscillating frequency [mathjaxinline]{omega _{ m{0}}}{ m{ = }}\_\_\_\_\_[/mathjaxinline]. Which of the following characteristics is right for the circuit?