Even at low levels, ______A) the nervous system has produced detrimental effects by lead.B) lead

問題詳情

16. Even at low levels, ______A) the nervous system has produced detrimental effects by lead.B) lead’s detrimental effects are producing the nervous system.C) lead produces detrimental effects on the nervous system.D) the detrimental effects produced by lead on the nervous system.

參考答案

答案：C
難度：適中0.5
統計：A(14),B(3),C(29),D(10),E(0)

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