Statements: Smoking is one of the human weaknesses, which tends to test the willpower of the smoker to the edge.Conclusions:I. It is very difficult for the smokers to give up smoking even if they want to.II. Human beings have other weaknesses as well.
Correct answer: D. Both conclusions I and II follow
- A. Only conclusion I follows
- B. Only conclusion II follows
- C. Either conclusion I or II follows
- D. Both conclusions I and II follow
Explanation
The phrase "tests the willpower to the edge" implies that quitting is very difficult (Conclusion I). The phrase "one of the human weaknesses" explicitly states that smoking is one among several weaknesses (Conclusion II). Both conclusions logically follow from the statement.
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Specific defense mechanisms protect the body through antigen recognition by B and T lymphocytes. The topic covers clonal selection, antibody production, plasma and memory cells, cell-mediated responses, helper and cytotoxic T cells, and the difference between primary and secondary immune responses.
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