单项选择题

Why are nutritionists concerned about adding vitamins to olestra

A．It may lead to the over-consumption of vitamins.
B．People may be induced to eat more than is necessary.
C．The function of the intestines may be weakened.
D．It may rigger a new wave of fake food production.

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单项选择题

The passage suggests that in for-profit organizations_______.

A．there is no end of conflict
B．expression of different opinions is encouraged
C．decisions must be justifiable
D．success lies in general agreement

单项选择题

What is a possible negative effect of olestra according to some critics

A．It may impair the digestive system.
B．It may affect the overall fat intake
C．It may increase the risk of cancer.
D．It may spoil the consumer's appetite.