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| Q. |
If the standard length of a crossing is 480 cm, the number of crossing is |
| A. | 1 in 8½ of b.g. |
| B. | 1 in 8½ of m.g. |
| C. | both (a) and (b) |
| D. | none of these |
| Answer» C. both (a) and (b) | |
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