细辛的毒性成分主要是A.去甲乌药碱 B.甲基丁香酚 C.细辛醚 D.黄樟醚 E.小檗 发布时间:2018-01-19 03:20 │ 来源:www.tikuol.com 题型:单项选择题 问题: 细辛的毒性成分主要是A.去甲乌药碱B.甲基丁香酚C.细辛醚D.黄樟醚E.小檗碱
题型:单项选择题 2. Why did Jane go to Africa to study chimps in the wild? Because she wanted .A.to work with them in their own environmentB.to prove the way people think about chimps was wrongC.to discover what chimps eatD.to observe a chimp family 查看答案
题型:单项选择题 红细胞形态偏小,中心淡染区扩大,受色浅淡,骨髓铁染色发现细胞内、外铁消失,为进一步确定贫血的病因,宜首选下列何项检查()A.血清叶酸、维生素B12测定B.Ham试验C.Coomb试验D.铁代谢检查E.红细胞寿命测定 查看答案