单项选择题A．To sell and to inform.B．To increase prices and competition.C．To change the means of selling and buying.D．To take away chances of choosing from customers.

填空题The woman was protected in those societies by a

填空题action

单项选择题A．Mother and son.B．Father and daughter.C．Teacher and student.D．Husband and wife.

填空题Women held a high place in the 10th and 11th centuries in southern