【简答题】完形填空。 I came to study in the US last fall. My life had been 1 since I arrived at Andover. Although I had several outside-class activities, I hadn't taken any official leadership position. This 2 chang...
【简答题】. (10分)下列三个化学反应的平衡常数( K 1 、 K 2 、 K 3 )与温度的关系分别如下表所示: 请回答: (1)反应①是 (填“吸热”或“放热”)反应。 (2)写出反应③的平衡常数 K 3 的表达式 。 (3)根据反应①与②可推导出 K 1 、 K 2 与 K 3 之间的关系,则 K 3 = (用 K 1 、 K 2 表示)。 (4)要使反应③在一定条件下建立的平衡向逆反应方向移动,可...
【单选题】听力原文:M: I came across our friend Michael last week in the street. He said he hadn' t heard from you for ages. W: Yes, I know. But I' ve been too busy to telephone him. Why does the man want to work in...
【简答题】完形填空 I came to study in the US last fall. My life had been quite 1 since I arrived at Andover. Although I had quite a few extracurricular (课外的) activities, I hadn’t taken any official leadership posit...