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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
我觉得这道题可以通过别的方法排除答案，首先A、B中，involving的修饰对象模糊，是disease还是什么？ambiguous，排除；然后E中which错误指代heart，排除，剩下CD，发现除了for 和to之外的一个重要区别在于involve的形式，C中的involve是动词形式，发现和is... 并列，都是用来修饰主语的，而D中，that involve明显是用来修饰disease，根据句意发现，involve应该是指Coronary angiography，而不是disease，所以D is out. C wins.
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发表于 2015-10-14 12:15:29
