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【单选题】
以下对牙颈曲线的描述错误的是（）。A.
牙颈缘在牙冠各轴面均呈弧形曲线
B.
颈曲线在唇颊面呈凸向 缘方的弧线
C.
颈曲线在近中面呈凸向 缘方的弧线
D.
颈曲线在远中面呈凸向 缘方的弧线
E.
颈曲线在舌面呈凸向根方的弧线
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举一反三
【判断题】Trudie Jones works for a distribution channel firm that helps several electronics companies find customers or make sales to them. Trudie works for a reseller.
A.
正确
B.
错误
【单选题】听力原文： Big Buy Electronics, the nation's second largest electronics chain, is blaming its larger than expected loss in the first quarter on poor sales at 15 of its stores. Those 15 stores were undergoi...
A.
A slowing economy
B.
Strong competition from rivals
C.
Poor sales at stores undergoing renovations
D.
Costs associated with opening new stores
【简答题】A．electric B．electrical C．electronic D．electronics
【简答题】biology technology methodology psychology politics economics electronics classics
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