MCQOPTIONS
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				| 1. | 
                                    Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent. | 
                            
| A. | 3 & 10 | 
| B. | 10 & 3 | 
| C. | 10 & 20 | 
| D. | 15 & 8 | 
| Answer» C. 10 & 20 | |