胆固醇合成的限速酶是() ["HMG-CoA合酶","HMG-CoA裂解酶","HMC-CoA还原酶","MVA激酶","鲨烯还原酶"]
进行工作评价必须要做的第一项工作是() ["清岗","完善工作说明书","选择适当的工作评价方法","组建工作评价委员会"]
新潮社
下列属于营养必需脂肪酸的是() ["软脂酸","亚麻酸","硬脂酸","油酸","月桂酸"]
酮体是指() ["草酰乙酸,β羟丁酸,丙酮","乙酰乙酸,β羟丁酸,丙酮酸","乙酰乙酸,β氨基丁酸,丙酮酸","乙酰乙酸,γ羟丁酸,丙酮","乙酰乙酸,β羟丁酸,丙酮"]
预精馏塔加萃取水对精馏操作起到什么作用?