41.以下有關上顎第二小臼齒之敘述,何者錯誤?
(A)從近心面觀,頰側咬頭與舌側咬頭幾乎等長
(B)從近心面觀,牙冠有明顯的發育凹陷(developmental depression)
(C)從遠心面觀,牙根的發育凹陷 (developmental depression)較近心面明顯
(D)從遠心面觀,牙冠呈現梯形
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統計: A(44), B(847), C(187), D(105), E(0) #1034947
統計: A(44), B(847), C(187), D(105), E(0) #1034947