In liquid cargo ships, the() is divided into tanks.
The holds are divided by ().
Ropes can be divided into three types: ().
Ropes can be divided into ()basic types.
A certain number is divided by 5 and the quotient is then divided by 7. If the final result is 6, what was the original number?
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()(货船)can be divided into two basic types.
Fires can be divided into different ().