That is not____kite. That kite is very small,but____is very big. (I)
计算(﹣2x2y)3的结果是( )
Cu2+(aq)+MnS(s)⇌CuS(s)+Mn2+(aq)
下列有关该反应的推理不正确的是( )
读亚洲大陆沿30°N地形剖面示意图甲、亚洲大陆沿80°E地形剖面示意图乙,回答下题.