幽门瘢痕性梗阻应
A．充分准备后行胃大部切除术B．应用抗生素治疗C．立即手术，去除病因D．非手术治疗与观察E．腹部热敷
参考答案：A
用所给单词的适当形式填空。
1. They are playing games. They are very ______ (relax).
2. There are many different kinds of ______ (scarf) in the mall.
3. What a ______ (sun) day it is!
4. The man enjoys ______ (lie) on the beach.
5. I usually sleep when it's ______ (rain).
典型的电波传播的路径损耗预测的经验模型有（）
A.Okumura模型
B.Hata模型
C.Lee模型
D.曼哈顿模型
