()产热营养素在体内氧化产生的能量称为产热系数。A.1g B.10g C.100g 发布时间:2017-11-06 11:02 │ 来源:www.tikuol.com 题型:单项选择题 问题: ()产热营养素在体内氧化产生的能量称为产热系数。A.1gB.10gC.100gD.1000g
题型:单项选择题 现有H2SO4、Ba(OH)2、Na2CO3和氯水四种溶液,有如图所示的相互关系,图中每条线段两端的物质可以发生化学反应。下列推断合理的是 [ ]A.M一定是Ba(OH)2 B.Y可能是氯水 C.X一定是Na2CO3溶液D.Z可能是H2SO4 查看答案
题型:单项选择题 In a mayoral election, Candidate X received more votes than candidate Y, and Candidate Y received fewer votes than Candidate Z. If Candidate Z received 24, 000 votes, how many votes did Candidate X receive ? 查看答案