4. Arsenic in groundwater and its accumulation in plants and animals have assumed a _____
proportion in a large part of West Bengal, India.
(A) hallucinatory
(B) menacing
(C) negligible
(D) respective
詳解 (共 3 筆)
未解鎖
Arsenic in groundwat...
未解鎖
(A) hallucinatory 幻覺...