6.在開鑿巴拿馬運河的歷史上,下列何種疾病扮演著關鍵性的角色?
(A)莫利谷腦炎(Murray Valley encephalitis)
(B)科薩努森林病(Kyasanur Forest disease)
(C)黃熱病(Yellow fever)
(D)拉薩熱(Lassa fever)
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統計: A(181), B(274), C(693), D(175), E(0) #856706
統計: A(181), B(274), C(693), D(175), E(0) #856706