阿摩線上測驗
31 There were 38 carbon monoxide poisoning cases this year due to _______ use of gas water heaters.
(A) inclusive
(B) impossible
(C) inappropriate
(D) imaginary
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統計： A(34), B(26), C(170), D(23), E(0) #2919858
統計： A(34), B(26), C(170), D(23), E(0) #2919858
