阿摩線上測驗
9. Viruses cannot survive on their own. They must obtain ________ from their hosts.
(A) capsules
(B) nutrients
(C) solution
(D) tablets
答案：登入後查看
統計： A(17), B(379), C(5), D(3), E(0) #1819812
統計： A(17), B(379), C(5), D(3), E(0) #1819812
