Deck : General Navigation - 29/2138
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| In addition to monitoring channel 16, all Corps of Engineer locks may use as working channels __________. |
| A) 06, 12 and 22A |
| B) 12, 13 and 14 |
| C) 14, 24 and 28 |
| D) 01A, 05A and 07A |
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