Building Construction
While investigating the site, a thick layer of fairly firm clay over a deep layer of soft clay is encountered. In such a situation, the following type of foundation is useful:
1, 2, 3, 4, 5
2, 1, 3, 5, 4
3, 2, 5, 1, 4
5, 4, 3, 2, 1
ANSWER
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