Which of the following is a disease? The second paragraph suggests that what has been discovered about immune system can be use

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问题 Which of the following is a disease?
The second paragraph suggests that what has been discovered about immune system can be used______.

选项 A、to strengthen immune system’s capacity to fight pathogens.
B、to create immune system with allergies.
C、to interpretate the data contained in immune system.
D、to find out how cancers fight immune system.

答案D

解析
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