637.Several studies have found that the coronary patients who exercise most actively have half or less than half the chance of dying of a heart attack as those who are sedentary. (A) have half or less than half the chance of dying of a heart attack as those who are sedentary (B) have half the chance, or less, of dying of a heart attack than those who are sedentary do (C) have half the chance that they will die of a heart attack, or less, than those who are sedentary do (D) are at least fifty percent less likely to die of a heart attack as those who are sedentary (E) are at least fifty percent less likely than those who are sedentary to die of a heart attack 答案是E ,我选B 越看越晕,B:do指have,看起来蛮顺的,就是对or less有疑问 E:把at least和fifty percent less...than分开来看,那么也可以说的通,就是后面的to die of到底怎么回事呢?
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