Question

求分析这个句子成分，谢谢。

这是四级题里的一个选择题：A new technique having been working out,the yields increased by 20%.看不懂，请各路大神帮我好好分析一下，谢谢！

Answer 1

〔原因状语〕A new technique having been working out 【这是独立主格结构。A new technique 是充当独立主格的逻辑主语，后面的 having been working out 是现在分词短语】
〔主语〕the yields
〔谓语〕increased
〔状语〕by 20%
参考译文：由于一项新的技术研究顺利完成，生产效益随之增加了20%。

Answer 2

A new technique having been working out独立主格结构状语,the yields主 increased谓 by 20%状.
A new technique逻辑主语 having been working out分词：独立主格结构状语

Answer 3

一种新技术被研发出来，产量增长了20%

Answer 4

由于发明了新技术，使此领域提高了20%。