设A={a,b},则P(A)=__________________
A、{Ø,{{a}},{{b}},{a,b}}
B、{{Ø},{a},{b},{a,b}}
C、{Ø,{a},{b},{{a,b}}}
D、{Ø,{a},{b},{a,b}}
发布时间:2025-03-04 12:27:11
A、{Ø,{{a}},{{b}},{a,b}}
B、{{Ø},{a},{b},{a,b}}
C、{Ø,{a},{b},{{a,b}}}
D、{Ø,{a},{b},{a,b}}