无菌包打开后有效期为( )
A.2小时 B.4小时 C.8小时 D.24小时 E.7~14天
参考答案:D
违约责任的承担形式主要包括()。
A.违约金责任
B.赔偿损失
C.强制履行
D.定金责任
E.采取补救措施
In relation to contract law:
(a) State and explain the conditions that must be fulfilled for acceptance for a contract to be formed. (5 marks)