According to the news item, partially hydrogenated oils are used to______.
A．prevent heart attacks
B．decrease food cost
C．lower bad cholesterol
D．enhance food flavor

A.
A．prevent
B.decrease
C.lower
D.enhance

【参考答案】

D
本题考查重要细节。根据句(4)可知，部分氢化油被用来提升某些食物的口感或保鲜食物，故为[D]。