38.含氮廢物包括氨(ammonia)、尿素(urea)與尿酸(uric acid),關於三者對生物體的毒性,下列何者正確?
(A) NH3 > urea > uric acid
(B) uric acid > urea > NH3
(C) NH3 > uric acid > urea
(D) urea > uric acid > NH3
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統計: A(59), B(13), C(35), D(4), E(0) #930426
統計: A(59), B(13), C(35), D(4), E(0) #930426