求教！！

jinyan1327

1）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)原文B)have half the chance, or less ,of dying of a heart atttack 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 fifity percent less likely to die of a heart attack as those who are sedentary
E)are at least fifty percent less likely than thosewho are sedentary to die of a heart attack
2）Many psychologists and sociologists now contend that the deliberate and even brutal aggression integral to some forms of comprtitive athletics (increase the likelihood of imitative violence that erupts) among crowds of spectators dominated by young adult males
我选的是increase the likelihood of imitative violence erupting 答案是increases the likelihood that imitative violence will erupt