题干
The teacher stressed again that the students should not _____ any important details while retelling the story.
A：bring out
B：leave out
C：let out
D：make out
答案(点此获取答案解析）
B
2Z(g);正反应放热。从反应开始经过t1后达到平衡状态,t2时由于条件改变,平衡受到破坏,在t3时又达到平衡,据下图回答:从t2→t3的曲线变化是由哪种条件引起的（ ）