[求助]A in order to B;A rely on B 充分必要条件是?

mermaid009

A in order to B:  A推出B

A rely on B: B推出A

right?

[此贴子已经被作者于2008-3-15 22:43:54编辑过]

shirley8707

a in order to b 为 B 推出 A

A rely on B: A推出B

shirley8707

a in order to b 为 B 推出 A

A rely on B: A推出B

mermaid009

是吗?

in order to 我不太明确,

RELY ON B, B不是必要条件,B推出A

Jenny916

同意shirley8707

A in order to B : B-> A

A rely on B: A->B 

mermaid009

啊?

严重糊涂中

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