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UID554712在线时间 小时注册时间2010-8-10最后登录1970-1-1主题帖子性别保密 
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| 137.    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
 
 
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