McqMate
| Q. |
Which of the following statements is true? |
| A. | polyethylene films have a good heat- sealability |
| B. | polyvinylidene chloride films are gas and water vapor impermeable |
| C. | nylon films have high physical strength |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| Explanation: polyethylene films have a good heat-sealability. polyvinylidene chloride films are gas and water vapor impermeable. nylon films have high physical strength. | |
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