患有十二指肠球部溃疡的患者,当并发幽门梗阻时可发现下列哪一种最有诊断价值的体征()。
A.肠型
B.移动性浊音阳性
C.液波震颤
D.振水音
E.高亢肠鸣音
参考答案:D
用unless 改写句子。
1. We deal with our problems. We can easily become un-happy.
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2. It is sunny. We won't have a picnic.
3. You have finished your homework. You can't play foot-ball.
4. The lights turn green. You mustn't cross the road.
5. We have enough money. We can't buy the car.
下颌骨体部的骨化中心位于()
A.下颌神经出颅处
B.下牙槽神经与舌神经所形成的夹角下方
C.切牙神经和颏神经所形成的夹角下方
D.切牙神经的末端附近
E.颏神经的末端附近