【经】 宣告合同无效

express terms of the contract execution of the contract of carriage contract for the supply of labour declaration of avoidance avoidance of policy contract for the payment of goods by instalments contract for the delivery of goods by installments avoidance principal to the contract avoidance of injury and death accident privity of contract avoidance of contract severability of the contract original of the contract terms of the contract essence of the contract condition of the contract contract the line of credit contract theory of the state contract of the assumption of debts date of approval of the contract contract for the supply of necessary goods