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【单选题】
腮腺导管开口于哪个牙相对应的颊粘膜上A.
上颌第1前磨牙
B.
上颌第2前磨牙
C.
上颌第1磨牙
D.
上颌第2磨牙
E.
舌下阜
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参考解析：
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皮皮学刷刷变学霸
举一反三
【简答题】评价中心技术的突出特点有哪些？
【单选题】Why didn't the government's expansion programme work very well?
A.
Because the farmers were uncertain about the financial support the government guaranteed.
B.
Because the farmers were uncertain about the benefits of expanding production.
C.
Because the farmers were uncertain whether foreign markets could be found for their produce.
D.
Because the older generation of farmers were strongly against the programme.
【单选题】Why didn't the government's expansion program work very well?
A.
Because the farmers were uncertain about the financial support the government guaranteed.
B.
Because the tanners were uncertain about the benefits of expanding production.
C.
Because the farmers were uncertain whether foreign markets could be found for their produce.
D.
Because the older generation of farmers were strongly against the program.
【单选题】对于前牙深覆盖的治疗，以下观点错误的是（）
A.
早期矫治时，一般在乳牙期进行。
B.
牙性前牙深覆盖患者，一般多由于上颌前牙唇倾或下前牙舌倾所致。
C.
前牙深覆盖的临床表现为牙合及颌骨畸形
D.
对于成人严重骨性前牙深覆盖，可考虑正颌手术加正畸治疗。
【单选题】Why didn't the government's expansion program work very well?
A.
Because the farmers were uncertain about the benefits of expanding production.
B.
Because the farmers were uncertain about the financial support the government, guaranteed.
C.
Because the farmers were uncertain whether foreign markets could be found for their product.
D.
Because the older generation of farmers were strongly against the program.
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