上颌牙的血供来自( )
A、脑膜中动脉
B、上唇动脉
C、上牙槽后动脉
D、上牙槽前动脉
E、以上都不是
【答案】CD
上颌牙的血供来自( )
A、脑膜中动脉
B、上唇动脉
C、上牙槽后动脉
D、上牙槽前动脉
E、以上都不是
【答案】CD
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