文革结束后，导致我国在前进道路上出现徘徊局面的原因是（    ）

阅读理解,阅读下面材料，根据材料内容和要求，从题后选项中选择一个最佳答案。

                Moving On

The end of school is here at last

It has come so very fast

We look ahead with such delight

The future looks so very bright

It's now time to say goodbye

We're all leaving junior high

Other people, other places

Different schools, different faces

Please don't feel bad and grieve

On the day you take your leave

But celebrate and raise your glass

And say goodbye to all your class

Other subjects, a new class

Different teachers and exams to pass

For everyone in this hall

A new life awaits you all

So don't look sad and cry

You're moving on senior high

Tips: senior high高中

prom night 毕业晚会

positive 积极的；主动的

阅读以上诗歌，根据其内容回答下列各个小题。

原始的地球大气与现在的空气在成分上有明显的差别，那时的大气成分主要是（　　）

面对下列漫画中存在的问题,我们应该　(　　)

①增强权利意识,善用合法手段解决问题

②感到委屈、困惑、怨天尤人甚至进行报复

③理性反思,保持平和的心态

④接受不公平,因为公平总是相对的