[求助]prep1-40

kevin512813

Although the artificial fat, which can be used in place of fat in food preparation, has none of the negative health effects of fat, it does have a serious drawback:  it absorbs certain essential vitamins, thereby preventing them from being used by the body.
只要是能够支持或者削弱人工脂肪have a serious drawback的就是正确答案，而A恰恰说明了：维生素可以通过多吃补充，所以这不算是serious drawback，所以A削弱论点，是正确答案。

q303739744

ls解释的很清楚了  THX!