详细剖析这个句子!急Behavioral scientists have done countless experime

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详细剖析这个句子!急
Behavioral scientists have done countless experiments to prove that any human being tends to repeat an act which has been immediately followed by a pleasant result.
不用翻译，解析一下句子结构就ok的

Behavioral scientists（主语） have done （谓语）countless experiments （宾语）to prove（不定式短语,做目的状语） that any human being tends to repeat an act （宾语从句,做prove的宾语）which has been immediately followed by a pleasant result（定语从句,修饰an act）.

详细剖析这个句子!急Behavioral scientists have done countless experime 英语翻译As studied by social and behavioral scientists,diffusion 英语语法：She never would have done this.请剖析这句话的意思. have something done的句子 What you have done might do harm to other people.详细分析一下句子结构, 英语翻译听到一个句子 Haven't I done anything wrong.这个句子为何不是have I done 情态动词+have+done 的详细用法? Scientists have done a lot of r_ on dinosaurs sinse long ago ____ scientists have done a lot of researth on the (H1H1) fl ____ scientists have done a lot of research on A1H1N1 flu,th you would have done whatever it took to win this war.请问这个句子的 have been done 这个短语要是在句子中,哪个词是谓语动词?