City
Out-fall
Tail end
Any point
Answer is Wrong!
Answer is Right!
The correct answer is: D. Any point.
Setting out the alignments of sewers may start from any point. The most important thing is to ensure that the sewer is aligned in the correct direction and that it has the correct slope. The slope of the sewer is important to ensure that the sewage flows smoothly and does not back up.
The city, outfall, and tail end are all possible starting points for
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