问题
单项选择题 A1/A2型题
局限于上颌骨内的上颌骨动静脉畸形，其供血动脉为（）
A.上牙槽后动脉
B.眶下动脉
C.面横动脉
D.上唇动脉
E.内眦动脉
答案
参考答案：A
解析：上颌骨动静脉畸形若仅局限于上颌骨内，供血动脉为上颌动脉的上牙槽后动脉。
搜题请搜索小程序“爱下问搜题”
局限于上颌骨内的上颌骨动静脉畸形，其供血动脉为（）
A.上牙槽后动脉
B.眶下动脉
C.面横动脉
D.上唇动脉
E.内眦动脉
参考答案：A
解析：上颌骨动静脉畸形若仅局限于上颌骨内，供血动脉为上颌动脉的上牙槽后动脉。
读下面一段短文，根据上下文意思，用括号内所给词的正确形式填空。并将答案写在文
Can you imagine the future without teachers but computers? Students will teach themselves in the schools in the future．Computers help students develop their own ways of learning. Students will follow the learning programs by looking at online libraries and watching lessons by world—class teacher. If they don’t understand something，they will ask other students ________小题5:or E-mail their teachers．Computers are becoming more and more popular indeed(真正地)． |