短文改错

Dear Brown,

      Last summer I take a parttime job in the International Camp for children.I have been told one more

 worker will be needed in this year and I think you are fit to it.How about join us?The camp is at the foot

of a small hill close to a river.It is so a beautiful place!We can hear birds singing happy all around.

Everybody sleeps in tents,that is very exciting.We usually work only five hours a day,so we will have plenty of spare time visit the area and have a fun.I am sure it will be an unforgettable experience.If you have

interests in it, reply to me soon.

在房屋及设施设备管理中，( )是降低管理成本、提高管理效率和服务质量，培养专业技术人才的有效方法。

A．外包管理

B．技术支持

C．采购和零备件管

D．维修保养