問題詳情
25. Pile-dwellings. For what primary purpose are these dwellings built on stilts?
(A) 1 = protection against melting floods 2 = protection against seasonal floods
(B) 1 = protection against melting floods 2 = protection against vermin
(C) 1 = protection against soil subsidence 2 = protection against seasonal floods
(D) 1 = protection against soil subsidence 2 = protection against vermin