OA |
OB |
OC |
OC |
OA |
OB |
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
OC |
OA |
OB |
OC |
)OA |
OB |
OC |
OA |
OB |
OA |
AC |
AB |
AC |
AB |
AC |
AB |
AC |
AB |
OC |
OA |
OB |
OA |
OC |
)OA |
OB |
OC |
OA |
OB |
|
A.充分非必要条件 | B.必要非充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
A.充分但不必要条件 | B.必要但不充分条件 |
C.充分且必要条件 | D.不充分也不必要条件 |
A.①③ | B.②③ | C.②④ | D.②③④ |
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