题目

—I’d like to go to the cinema with you, mum. —Sorry, darling, but the film is         for adults only. A．admitted                     B．intended              C．promised             D．permitted 答案：B血液与组织细胞进行物质交换的血管是A．动脉　　　B．静脉　　C．导管　　D．毛细血管