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举一反三
【单选题】Many Americans harbor a grossly distorted and exaggerated view of most of the risks surrounding food．Fergus Clydesdale, head of the department of food science and nutrition at the University of Massac...
A.
They overlook the risks of the food they eat.
B.
They overestimate the hazards of their food.
C.
They are overoptimistic about the safety of their food.
D.
They overstate the government's interference with the food industry.
【多选题】CO中毒引起缺氧的主要原因有( )
A.
HbCO无携氧能力
B.
CO抑制红细胞内糖酵解，使2,3-DPG生成减少
C.
动脉血氧分压降低
D.
氧离曲线右移
E.
动脉血氧分压增高