科学兴趣小组做碳还原金属氧化物实验后，收集到CO和CO₂的混合废气，考虑到废气直接排放会污染环境，想把废气初步分离回收再利用．用如图所示的装置进行分离实验（收集装置略去）．

吉祥文化是中国人特有的一种文化，在许多中国的民间器物——首饰、绣品、木雕、瓷器上，都可以看到吉祥符号。中国的吉祥文化受到许多外国友人的喜爱，也丰富了世界文化。这告诉我们（    ）

①文化是民族的，各民族都有自己的文化个性和特征

②中华文化正在成为世界性文化

③尊重文化多样性有利于繁荣世界文化

④文化是世界的，各民族文化都是世界文化中不可缺少的色彩

如图中，人体新生命形成的场所是（　　）

    Everyone wants to be successful. But failure is a common(普通的) thing for us to meet with.1, sometimes we fail the exams, sometimes in the sports meet, others 2but we fail. So 3everybody meets with the failure in his life.

    However, different people have different 4to deal with the failure. Some people lose

    hope when they fail. They seem to think that it is the5of the world. Others don't take failure 6. They seem to think that failure is the first step(步骤) to success. They will keep up and try their best  7the final success.

    Now let's imagine (猜想) the ends of the two ways. If we are afraid of the failure and always feel 8, and don't try our best to change ourselves, we may meet with more and more failures. But if we are hopeful and brave to face them, and never give up, we will 9 successful and our dreams will come true some day.

    So, please remember: Life doesn't give us the pleasure we want. But if we never give up and10do little by little, it will make a big difference.