题目内容:
Which of the following statements is trueaccording to the passage?
A. Toxoplasma gondii causes people strange anddeadly diseases. B. With certain infection the infectious diseasecannot be cured completely.
C. Human beings infected by toxoplasma gondii willhave permanent brain damage.
D. Toxoplasma gondii is harmful to human beings, butit does no harm to mice.
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答案解析: