题目内容
干燥过程依据涂膜黏度的变化过程可分为表面干燥阶段、实际干燥阶段和完全干燥阶段。涂料的干燥时间主要受成膜物质的固化交联反应性质、固化剂种类、溶剂挥发速度等影响，还受温度、湿度、通风、光照等环境因素影响。
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多彩内墙涂料又称多彩花纹涂料，是一种常用的内外墙、顶棚装饰材料任何区域。它是将彩色的溶剂型树脂涂料慢慢地掺入到甲基纤维素和水组成的溶液中，通过不断搅拌而制成的。
Ex.12 Read the following paragraph and identify the signal word that the writer uses to indicate the importance of note-taking. 阅读以下段落，找出作者用来记笔记重要性的信号词。Note-taking is very important for college students. First, by the very act of writing, students are engaging in active learning. Research has shown that students retain less if they only listen or read. In addition, note-taking requires students to process the information. Because they cannot write down every word, they have to choose the most important points, paraphrase, and summarize information. What's more, college classes rely on the lecture to transmit information. The professor might have a different view on the subject from what is offered in the textbook and only explain it in class. Finally, students can use the notes they have taken for review for tests and exams. It is easier to reread notes than to reread the whole textbook. Thus, note-taking is a valuable practice for students.
蓄电池特殊性能低温起动性能好用（）字母表示
汽车用蓄电池有铅酸蓄电池和碱性蓄电池两大类。
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