如果你在配平方程式方面有问题，你可以看看课本中的2。11节。
And, if you have trouble balancing equations, you can look in section 2.11 in the text.
无论怎样概括课本，都要总结出一个归纳性的问题。
No matter how general textbooks have been summarized into a problem.
大部分的问题都不是课本上的。
本节包含了课本中的作业，并收集了特殊问题。
This section includes assignments in the textbook, as well as a collection of special problems.
读课本第4页，回答问题。
看课本第八页的图片，回答下列问题。
Look at the picture on Page Eight and answer the following questions.
看课本第八页的图片，回答下列问题。
Look at the picture on Page Eight and answer the following questions.
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