问题
选择题
We have two rooms ______, but I can't decide ______. [ ]
A. to live, to choose which one
B. lived, choose which one
C. to live in, which one to choose
D. live, which one
答案
答案：C
搜题请搜索小程序“爱下问搜题”
We have two rooms ______, but I can't decide ______. [ ]
A. to live, to choose which one
B. lived, choose which one
C. to live in, which one to choose
D. live, which one
答案：C
牙冠2／3缺损，根管口有充填物存在，无松动，叩（-），余未见异常。