上半口义齿基托后部的封闭区是A.上颌结节 B.上颌前弓区 C.上颌硬区 D.上颌后堤 发布时间:2017-06-17 10:50 │ 来源:www.tikuol.com 题型:单项选择题 问题: 上半口义齿基托后部的封闭区是A.上颌结节B.上颌前弓区C.上颌硬区D.上颌后堤区E.腭小凹
题型:单项选择题 句型转换。1. They can speak Chinese. (改为一般疑问句并作肯定回答) ______ they ______ Chinese? ______, they ______. 2. She can ride a bike. (改为否定句) She ______ ______ a bike. 3. Bill plays football well. (用can改写) Bill ______ ______ football well. 4. I can write English. (改为一般疑问句) ______ ______ write English? 查看答案