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【单选题】
科学界是从1998年开始重视对鳄鱼超强免疫系统的研究的。当时的研究显示，鳄鱼血液中所含的某些蛋白质能够杀死对盘尼西林有抗药性的细菌，例如金黄葡萄球菌。近期又有研究显示，鳄鱼血同样是艾滋病毒的“杀手”，比人类免疫系统的威力强得多。如果取一个试管的艾滋病毒，对比加入鳄鱼血清和人类血清后的结果可以发现，鳄鱼血清所杀死的艾滋病毒要比人类血清的多得多。 从上述论述中，我们可以推断( )。A.
鳄鱼具有免疫系统
B.
鳄鱼血是艾滋病毒的“杀手”
C.
科学界是从1998年开始重视对鳄鱼超强免疫系统的研究的
D.
鳄鱼血将成为一种更强有效的人类新抗生素来源
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A.
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B.
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C.
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D.
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