In the mid-1920s the Hawthorne Works of the Western Electric Company was the scene of an intensive series of experiments that would investigate changes in working conditions as to their effects on workers' performance.
In the mid-1920s the Hawthorne Works of the Western Electric Company was the scene of an intensive series of experiments that investigated changes in working conditions' effects on workers' performance
在这里prep笔记给的解释是changes既可以修饰in。。。也可以修饰on。。。
迷茫了。。。??
如果这样的话,对于那种主句前有两个修饰的会不会有歧义?比如:prep2 107 Galileo did not invent the telescope, but on hearing, in 1609, that such an optical instrument had been made, he quickly built his own device from an organ pipe and spectacle lenses.