前牙的工作长度具体指(  )。

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前牙验运循环的功能阶段是(  )。

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铸造颌支托凹制备时,其宽度应为前磨牙颌面颊舌径的(  )。

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You will find it hard to make friends with people_________

You will find it hard to make friends with people_________A.A without pity B.B s

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Friendly Relations with the People Around  1 You depend on a

Friendly Relations with the People Around  1 You depend on all the people closel

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