cho (O) có tâm O nằm trên đường phân giác của góc xAy, cắt tia Ax ở B và C cắt tia Ay ở D và E chứng minh rằng hai dây BC và DE cách đều tâm O và bằng nhau

1. Fill each of the blanks in the passage with one suitable word
With the coming of the motor car at the end of the last century a new era in personal transport was born. The early motorist certainly (1) his problems- ………perhaps the biggest one being (2) his vehicle would start or not. This ………problem has almost (3) today but others have (4) its place. More ……… ………traffic and faster vehicles mean that, (5) safe and reliable a car may be, its ………driver has to have (6) more driving skill than ever before.………Today's drivers cannot neglect their own direct and personal (7) for ………the accidents that happen on the road every year. A good driver has many things (8) his make- up. Some of (9) , such as experience and skill, will come ……… ………only in (10) , but others - just as important - must (11) part of him ……… ………from the start. These qualities are a (12) of responsibility for the safety of ………others, a determination to (13) on the job of driving, patience and courtesy. ………Together, these become what is generally known (14) the drivers' attitude.………(15) everyone is patient (16) nature or gifted with good (17) ……… ………of concentration. But because attitude is (18) important a part of safe ……… ………driving, every driver must (19) a real effort to develop these qualities - and ………this effort must start from the (20) beginning of the first driving lesson.

Theo em, những tài sản nào Nhà nước quy định phải đăng ký quyền sở hữu? Vì sao đăng ký?