【单选题】听力原文:W: Interested in this book? This is our best seller this week. M: Best seller? I am considering what new ideas it gives about how to deal with the aggravating people. W: It asks people to quit co...
【单选题】听力原文:W: Interested in this book? This is our best seller this week. M: Best seller? I am considering what new ideas it gives about how to deal with the aggravating people. W: It asks people to quit co...
【简答题】全世界每年被腐蚀损耗的钢铁量非常惊人,在潮湿空气中发生吸氧腐蚀是钢铁腐蚀的主要原因。 (1)在潮湿空气中,钢铁发生吸氧腐蚀时的负极反应的电极反应式为 。 (2)已知草酸(H 2 C 2 O 4 )分解的化学方程式为:H 2 C 2 O 4 CO↑ + CO 2 ↑ + H 2 O,下列装置中,可用作草酸分解制取气体的是 (填答案编号)。 (3)某实验小组为测定铁锈样品的组成(假定铁锈中只有Fe 2...