本题目来源于试卷: SL Topic C3.2 Defence against disease，类别为 IB生物学
[单选题]
1. Why are phagocytes r8/dv9 p ivvin:cbtt 78egard-q3uc5/g i(,veh* okc 1 gjnaded as a component of the innate immune system?
A. They are effective against all pathogens.
B. Their method of action does not adapt to pathogenic infections
C. They are found in invertebrates and vertebrates.
D. They can destroy pathogens and damaged body cells.
参考答案: B
本题详细解析:
暂无
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