问题
选择题
A club is a place to make frequent _____ with friends. [ ]
A. contrast
B. contact
C. contract
D. content
答案
答案：B
搜题请搜索小程序“爱下问搜题”
A club is a place to make frequent _____ with friends. [ ]
A. contrast
B. contact
C. contract
D. content
答案：B
冠折，髓室暴露，叩（+），余无异常，X线片显示根尖尚未完全形成，最佳处理方法是（）