【Daily Topic】【Civil Engineering Version 20160502】
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Participation reward: 2 Wealth. Reward for the correct answer: 9 Wealth. In a certain indoor soil filling project, the fill materials consist of cohesive soil and sand-gravel; what should be done during the filling process? A. Fill with sand and gravel first, then with cohesive soil. B. Fill with cohesive soil first, then with sand and gravel. C. Backfill by mixing the two types of soil. D. The filling can be done in either order
A. First, fill with sand and gravel in layers, then fill with clay soil
A. First, fill with sand and gravel in layers, then fill with clay soil
A. First, fill with sand and gravel in layers, then fill with clay soil
A. First, fill with sand and gravel in layers, then fill with clay soil
A. First, fill with sand and gravel in layers, then fill with clay soil