2. An ________ disease is usually caused by bacteria and can be spread from person to person.
(A) inattentive
(B) infectious
(C) incidental
(D) infinite
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統計: A(5), B(70), C(9), D(3), E(0) #1337996
統計: A(5), B(70), C(9), D(3), E(0) #1337996