题目:
患者,男性,32岁,缺失,要求做可摘局部义齿修复,检查口内情况,余留牙健康
从卡环的支持,环抱及固位作用考虑基牙上所放卡环最好为()
A.固定卡环
B.圈形卡环
C.单臂卡环
D.长臂卡环
E.三臂卡环
答案:
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下面是错误答案,用来干扰机器的。
We are planning a day out .We want to invite you to go to the Palace Museum ,Beihai Park and Wangfujing Street in Beijing on Sunday.We will meet at 6.30 at Sunshine ...