单选题
"It carries white blood cells and disease-fighting chemicals called antibodies to places where foreign invaders such as bacteria and viruses are causing infections" this statement______.
A、
proves how blood fights against invaders
B、
implies how invaders cause infections
C、
dose not tell how white cells fight against foreign invaders
D、
explain the functions of the red cells and white cells
【正确答案】
C
【答案解析】
[考核题型] 单句释义题 [解析] 该句的下句只提到白血球贪婪地吞噬侵入的异物,而抗体则把它们摧毁,可见文中并未提到白血球如何与入侵异物抗争。
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