根据句意及首字母提示填空 。

1. My father is going on a t _____________.He is going to Beijing.    

2. Children often get some g___________on Christmas Day.    

3. I'm sony you don,t have f___________on your day off    

4. Young people like going for a d____________    

5. Many v__________ from different countries come to alina every year.

根据《节约能源法》，用能产品的生产者、销售者，按照国家有关节能产品认证的规定，向经国务院认可监督管理部门认可的从事节能产品认证的机构提出节能产品认证申请，所依据的原则是()。

A.自愿原则 

B.强制原则 

C.限制原则 

D.申请原则