以下域名服务器中，没有域名数据库的是______。A．缓存域名服务器 B．主域名服务

阅读短文，根据短文内容选择最佳选项。(共5小题，计l0分)
Sunny School is a bilingual （双语的)school for children between 6 - 15. We want a cook, a librarian (图书管理员 ), a sports coach, a driver and a language teacher.

Job	Age	Language	Skill	Need to be
cook	25—40	Chinese	can cook Chinese and Western food	healthy
librarian	20—35	Chinese，English	is good at keeping books well	careful
sports coach	20—40	Chinese，English	can play soccer and tennis well	healthy，strong
language teacher	20—35	Chinese，English	does well in English teachingand is good with children	kind，patient
driver	30—45	Chinese，English	at least has Licence B and l0 years’ driving experience	careful，healthy

 
小题1:Sunny School doesn't need.
A. a P.E. teacher  B. an English teacher  C. a math teacher
小题2:   may not speak English in Sunny School.
A. The Chinese teacher   B. The cook  C. The librarian
小题3:The sports coach can play    very well.
A. volleyball   B. soccer   C. chess
小题4:If a person wants to be a language teacher in Sunny School, he must    .
A. be able to speak both English and Chinese
B. be kind and patient
C. Both A and B
小题5:    may be more than forty years old.
A. The driver  B. The sports coach   C. The cook