MCQOPTIONS
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MCQOPTIONS
| 1. |
What is filter membrane made up of? |
| A. | Thin layer of collodion, cellulose acetate |
| B. | Thick layer of collodion, cellulose acetate |
| C. | Thin layer of collodion |
| D. | Thin layer of cellulose acetate |
| Answer» B. Thick layer of collodion, cellulose acetate | |