哪个OSPF区域需要通过默认路由到达其他区域？（） A.骨干区域 B.虚链接区域 C

阅读短文内容，用放框内所给词的适当形式填空。（5分）

resolution,   health,  practice,   plan,  hard

Every year we get a new start. On New Year’s Day we always write down our ___小题1:__ and put them up on the wall of our bedrooms.
This year my dream is to learn an instrument. And I still want to take more exercise to keep__小题2:__, too. You know, last year I spent much time _小题3:__ swimming. So this year I want to do something exciting and unusual. I’m __小题4:___ to learn the violin. So I’m thinking about taking violin lessons. And I’m going to practice much ___小题5:__ than usual. It says that practice makes perfect! What is your plan?