大全补充题137，竟然没有人问过

Coronary angiography, a sophisticated method for diagnosing coronary disease involving the introduction of a dye into the arteries of the heart, is now administered selectively, because it uses x-rays to observe cardiac function.

(A) for diagnosing coronary disease involving the introduction of a dye into the arteries of the heart, is now administered selectively, because it uses

(B) for diagnosing coronary disease involving the introduction of a dye into the arteries of heart, is now administered selectively, because of using

(C) for diagnosing coronary disease, involves the introduction of dye into the arteries of the heart and is now administered selectively, because it uses

(D) to diagnose coronary disease that involves the introduction of a dye into the arteries of the heart, is now administered selectively, because it uses

(E) to diagnose coronary disease involving the introduction of a dye into the arteries of the heart, which is now administered selectively, uses

这题一点思路都米有，做了几次挑得都是错答案。哪位帮忙分析一下，为什么是C? D不是也挺好吗？a method 一定要跟for 吗？to 不对吗？谢谢。

(D) to diagnose coronary disease that involves the introduction of a dye into the arteries of the heart, is now administered selectively, because it uses

1、method后接of/for 比接to do更idiomatic, 如OG39

2、that involves紧接disease有修饰歧义

同意that involves修饰有歧义

但是OG39并没说method of doing sth. > method to do sth. OG39是因为shield不是一种method所以不能选A,选项C是protecting，也不是a method of protecting.

多谢各位的参与，感谢！感谢！

尤其是xealot元老的解释:

METHOD FOR is idiomatic; this quiz is a great example that demonstrates that TO DO is not always over FOR V~ING.

大家一起共勉哈！