天山-4-32第一个BF的作用是什么?请大家指教

yaoyao99

That just raises doubt on the conclusion, doesn't mean that it's not the conclusion.

二狼神

以下是引用yaoyao99在2006-5-28 21:30:00的发言：
That just raises doubt on the conclusion, doesn't mean that it's not the conclusion.

Thank you,yaoyaoMM! Now I see which role the BF2 plays according to your view.Could you make further discussion about the BF1?I am confused how it contribute to the conclusion you pointed out.

二狼神

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xiaoda

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