已知热化学方程式：2H2(g)+O2(g)＝2H2O(g) ΔH1=－483.
题型：选择题
问题：
已知热化学方程式：2H2(g)+O2(g)＝2H2O(g) ΔH1=－483.6kJ/mol，则对于热化学方程式：2H2O(l)＝2H2(g)+O2(g) ΔH2=b，下列说法正确的是[ ]
A．该反应的ΔH2=+483.6kJ/mol
B．|ΔH2|＜|ΔH1|
C．|ΔH2|＞|ΔH1|
D．热化学方程式中化学计量数表示分子个数
题型：选择题
The nurse is administering warfarin (Coumadin) to a client with deep vein thrombophlebitis. Which laboratory value indicates warfarin is at therapeutic levels ？（）
A．Partial thromboplastin time (PTT) 
to 2 times the control.
B．Prothrombin time (PT) to 2 times the control.
C．International normalized ratio (INR) of 3 to 4.
D．Hematocrit of 32%.