阿摩線上測驗
5. Unlike ceramics, components of some types of plastics are known to be ____ to human health.
(A) haphazard
(B) infectious
(C) infamous
(D) hazardous
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統計： A(23), B(10), C(5), D(188), E(0) #939711
統計： A(23), B(10), C(5), D(188), E(0) #939711
