题目内容
（请给出正确答案）
[主观题]
People who drink 3～4 servings of fruit and vegetable juices weekly may______risk of
developing Alzheimer’s disease______those who drink only once a week.
A have twenty-three percent higher, than
B have three quarters lower, than
C be one hundred and twenty-three percent as high, as
D be one hundred and seventy-six percent as high, as
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