41. Which is the best title for this article?
(A) Dendritic Cells- An Elixir for All
(B) The Long Arm of the Immune System
(C)An Introduction to Cancer Cures
(D) The Mechanisms for Creating Vaccines

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統計： A(12), B(8), C(1), D(3), E(0) #1802839

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#3928760
Elixir 長生不老藥
(共 14 字，隱藏中）
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