下颌双尖牙牙髓炎进行治疗时，应用（）
A.浸润麻醉
B.上颌结节麻醉
C.下颌传导麻醉
D.腭大孔麻醉
E.切牙孔麻醉
参考答案：C
连词成句。
1. time, the, what's, please (?)
2. play, you, guitar, do, the (?)
3. twelve, what’s, six, minus (?)
4. go, play, let's, and, volleyball (.)
5. photo, is, look, my, this, family (.)
6. me, is, his, excuse, where, storybook (?)
