问题描述：
A study of more than 100,000 people has found that eating one egg _day does not appear to raise _ri
A study of more than 100,000 people has found that eating one egg _day does not appear to raise _risk of heart attack.A. the;a B. a;a C.a;/ D.a;the应选什么?
A study of more than 100,000 people has found that eating one egg _day does not appear to raise _risk of heart attack.A. the;a B. a;a C.a;/ D.a;the应选什么?
问题解答：
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