题目: 下列哪项不是急性毒性试验的目的()。A.测定致死剂量及其他毒性参数B.初步评价毒物对机体的毒效应特征C.为亚慢、慢性毒性试验及其他毒理试验研究提供剂量及观察指标选择的依据D.求出NOAEL或LOAELE.为毒理学机制研究提供线索 答案: 参考答案:D解析:求出NOAEL或LOAEL为亚慢性毒性试验和慢性毒性试验的目的。
题型:选择题 The square was so named ________ a famous black leader in history. [ ]A. in favor of B. in search ofC. in face of D. in honour of 查看答案
题型:选择题 Tom, _____ Jack, _____ to school by bus every morning.[ ]A. likes, go B. likes, goes C. like, goes D. like, go 查看答案