The gel formed by methyl cellulose and gelatin can form a gel at a high temperature or a low temperature and is in the form of a solution at a medium temperature, which is called. A: concave gel B: convex gel C: hot gel D: cold gel

Which of the following silica gel as adsorbent in TLC, contains neither inorganic adhesive material(gypsum ustum) nor fluorescence indicator? A: Silica gel H B: Silica gel G C: Silica gel GF254 D: None of above

styling gel

凝胶（Gel）

You must insert …….bags inside cartons. A: carbon B: gel C: silica gel

凝胶电泳（gel electrophoresis）

名词解释：sol and gel

对于GEL文件，需要写一个（）函数，这样在载入GEL文件时会自动执行这个函数。

silica gel A: 硅胶 B: % C: @

We can frequently clean our hands by using a gel