题型:名词解释 根据我国对再生障碍性贫血的严重程度分类,慢性再生障碍性贫血病情恶化呈急性表现者,称为()A.重型再生障碍性贫血B.极重型再生障碍性贫血C.重型再生障碍性贫血-Ⅰ型D.重型再生障碍性贫血-Ⅱ型E.急性再生障碍性贫血 查看答案
题型:名词解释 2g碳与水蒸气反应生成CO和H2,需吸收21.88kJ热量,此反应的热化学方程式为A.C + H2O ==CO + H2ΔH =+131.3kJ·mol—1B.C(s)+ H2O(g) ==CO(g) + H2(g)ΔH =+10.94kJ·mol—1C.C(s)+ H2O(g) ==CO(g) + H2(g)ΔH = -131.3kJ·mol—1D.C(s)+ H2O(g) ==CO(g) + H2(g)ΔH = +131.3kJ·mol—1 查看答案