反复发作的急性扁桃体炎的治疗是
A．抗菌治疗
B．微波治疗
C．手术切除
D．冷冻治疗
E．局部按摩
参考答案：C
用所给单词的适当形式填空。
1. Is it possible ______ (save)in any situation?
2. Aron still goes mountain ______ (climb),
3. The poor girl hurt ____ (she) in the accident.
4. They have much homework ____ (do).
5. The peanut was ____ (safe) removed by the doctor.
若联系为m:n，如何确定关系码______。
A) 每个实体集的码均是该关系的候选码 B) 关系的码为n端实体集的码 C) 关系的码为m端实体集的码 D) 关系的码为各实体集码的组合
