单项选择题

Which of the following is NOT true（）

A．People taking 200 IU got bigger immune defenses than the ones who got only 60 IU.
B．Research has found Vitamin E delays the progression of Alzheimer's disease.
C．Most of us can get sufficient Vitamin E from diet.
D．It's important to remember when taking Vitamin E: more may not be better.

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单项选择题

What's the main idea of the passage（）

A．People will be in perfect health if they take Vitamin E every day.
B．Study showed that people who took Vitamin E regained their Flexibility.
C．Vitamin E may help prevent Alzheimer's.
D．Vitamin E offers a range of advantage if old people take proper dose of Vitamin E every day.

单项选择题

What can you infer from the passage（）

A．Extremely high dose of Vitamin E can cause danger.
B．With proper dose of Vitamin E old people could be safer from infectious disease.
C．Researchers have proved that Vitamin E has no side effects.
D．Individuals with serious conditions should consult their doctors.