My grandparents have lived in a town nea
题型：选择题
问题：
My grandparents have lived in a town near Nanjing . They enjoy their life in the town.
A．for many years ago
B．since many years
C．many years ago
D．for many years
题型：选择题
| 下列图示与对应的叙述相符的是（ ）
A．图1表示可逆反应“2X（g）⇌Y（g）△H＜0”温度T1＜T2的情形 B．图2表示压强对可逆反应2A（g）+2B（g）⇌3C（g）+D（s）的影响，乙的压强比甲的压强大 C．图3中a、b、c三点中只有b点已经达到化学平衡状态 D．图4是向20mL pH=3的醋酸溶液中滴加pH=11的NaOH溶液过程中pH变化曲线 |
