问题
选择题
A photo(照片) is______ the wall, but the window(窗户) is _______ the wall.[ ]
A. on, in
B. in, on
C. under, on
答案
答案：A
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A photo(照片) is______ the wall, but the window(窗户) is _______ the wall.[ ]
A. on, in
B. in, on
C. under, on
答案：A
龋坏穿髓，颊侧牙龈肿胀，叩痛（++），
已完全萌出，沟裂深，颈缘及面软垢较多