42. Why does the S-type strain of Streptococcus pneumonia cause pneumonia?
(A) Unable to defend the immune system
(B) Surrounded by a polysaccharide capsule
(C) Able to grow and move
(D) Inactivated by the immune system
(E) Unable to form colony
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統計: A(3), B(63), C(9), D(5), E(0) #944342
統計: A(3), B(63), C(9), D(5), E(0) #944342