下列哪项不属于牙齿的功能（）
A.咀嚼
B.发音
C.言语
D.保持面部的协调美观
E.保持口腔的自洁作用
参考答案：E
When is an ordinary tropical storm called a hurricane
A．When it begins in the Atlantic and Caribbean seas.
B．When it hits the coastline.
C．When it is more than 75 miles wide.
D．When its winds reach 75 miles per hour.
目标考核基准值为：“达标率”（）、“工单处理及时率”和“蓄电池全容量测试率”（）、“发电工单处理及时率”（）。
