The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Endo-cochlear potential is:   (A) +45 mV   (B) --45mV   (C) -60mV   (D) +85 mV
['(D) +85 mV <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) +45 mV \n (B) --45mV \n (C) -60mV \n (D) +85 mV <> possible answers', '  Endo-cochlear potential is: <> context@']