阿摩線上測驗
47. A(n) is an occurrence of a disease that affects many people over a very wide area.
(A) endemic
(B) ebola
(C) pandemic
(D) poliomyelitis。
答案：登入後查看
統計： A(38), B(5), C(72), D(14), E(0) #2236418
統計： A(38), B(5), C(72), D(14), E(0) #2236418
