The Medical Letter group believes antioxidant supplementation
A. is ineffective in attacking free radicals.
B. alerts the immune system to the presence of free radicals.
C. attacks both free radicals and the immune system.
D. prevents the immune system from responding to free radicals.
Which of the following is NOT true about science？
A. Science accepts uncertainty.
B. Science does not push people to follow any specific set of moral rules.
C. Science teaches us to weigh different evidence.
D. Science urges us not to accept any beliefs or ideas.
Another big issue_____the nation is the problem of the education of its Citizens.
A. confining
B. illiterating
C. conforming
D. confronting
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