阿摩線上測驗
26. What does “artisanal” cobalt most likely refer to?
(A) Cobalt mined with craftsmanship.
(B) Cobalt mined with hand tools.
(C) Cobalt causing radioactive pollution.
(D) Cobalt causing water pollution.
答案：登入後查看
統計： A(14), B(41), C(18), D(3), E(0) #2685840
統計： A(14), B(41), C(18), D(3), E(0) #2685840
