MCQOPTIONS
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| 1. |
To produce the smoked rubber, the rubber sheets are hanged in smoked chambers at __________ |
| A. | 10-20<sup>o</sup>C |
| B. | 20-30<sup>o</sup>C |
| C. | 30-40<sup>o</sup>C |
| D. | 40-50<sup>o</sup>C |
| Answer» E. | |