问题
选择题
Many boys enjoy football but girls don't [ ]
A. play
B. plays
C. to play
D. playing
答案
答案：D
搜题请搜索小程序“爱下问搜题”
Many boys enjoy football but girls don't [ ]
A. play
B. plays
C. to play
D. playing
答案：D
缺失，余留牙未见异常，可摘局部义齿修复，做基牙，采用铸造卡环
应该采用何种卡环（）