MCQOPTIONS
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| 1. |
What is the minimum temperature required for carbonization?$ |
| A. | 200ÀöC |
| B. | 400ÀöC |
| C. | 600ÀöC |
| D. | 800ÀöC |
| Answer» D. 800‚àö√Ñ‚àö‚àÇC | |