第12题: [单项选择]The rock music made popular by the Beatles has been modified over the past two decades. A. improved B. changed C. discovered D. remembered 参考答案:B 答案解析:画线词modified:变化,修正。可用B.changed,“改变,变化”来替代。辨义: A.improved改进;C.discovered发现D.remembered记得。故答案为B。
第27题: [单项选择]What does the man meanWhat does the man mean A. He won’t learn how to use computer. B. He will learn how to use computer. C. He is good at using the computer. 参考答案:B 答案解析:[听力原文] F: Can you use a computer M: No, I can’t. But I’m sure I can learn it quickly.
第28题: [单项选择]关于Ⅲ、Ⅳ度根分叉病变的治疗错误的是() A. 治疗目的是充分暴露根分叉区,以利于菌斑控制 B. 附着龈宽度足够时采用袋壁切除术 C. 附着龈宽度不足时采用根向复位瓣术 D. 无治疗价值,需拔除 E. 常结合骨修整术 参考答案:D 答案解析:治疗目的是充分暴露根分叉区以利于菌斑控制。各种手术方式的应用是使很多患牙得以保存并长期行使功能。