牙釉质发育不全症（）
A.牙齿结构异常
B.牙齿形态异常
C.牙齿数目异常
D.牙齿萌出异常
E.牙齿结构形态均异常
参考答案：A
---What should I do to lose weight?
---________ more vegetables and less fat.
A．To take
B．having taken
C．Taking
D．Take
晋侯墓地
