脊柱侧凸的患者成年后75%可出现明显腰背痛、体力较差，工作能力下降或丧失。（）
参考答案：对
The price of the houses in this district_________from 5% to 7% in the past two months.
A．has fallen
B．has been fallen
C．was fallen
D．was falling
口腔颌面部因炎症而引起的囊肿主要是（）
A.根尖周囊肿
B.黏液囊肿
C.舌下囊肿
D.始基囊肿
E.牙龈囊肿
