31. The conventional wisdom to deal with the problem of landslides is to build a _____ wall.
(A) wooden
(B) sandy
(C) concrete
(D) plastic
(E) steel

答案：登入後查看
統計： A(5), B(7), C(93), D(2), E(2) #1985517

私人筆記 (共 1 筆)

私人筆記#4904561
未解鎖
(A) wooden木製 (B) san...
(共 106 字，隱藏中）
前往觀看
1
0