52．In ancient Greece,the Olympic Games___________.
　　[A] were merely national athletic festivals
　　[B]were in the nature of a national event with a strong religious color
　　[C]had rules which put foreign participants in a disadvantageous position
　　[D]were primarily national events with few foreign participants
　　53．In the early days of ancient Olympic Games,______________.
　　[A]only male Greek athletes were allowed to participate in the games
　　[B]all Greeks，irrespective of sex，religion or social status，were allowed to take part
　　[C]all Greeks，with the exception of women，were allowed to compete in Games
　　[D]all male Greeks were qualified to compete in the Games
　　54．The order of athletic events at the ancient Olympics____________.
　　[A]was not definitely established
　　[B]varied according to the number of foreign competitors
　　[C]was decided by Zeus，in whose honor the Games were held
　　[D]was considered unimportant
　　55．Modem athletes’results cannot be compared with those of ancient runners because______________.
　　[A] the Greeks had no means of recording the results
　　[B] details such as the time were not recorded in the past
　　[C] they are much better
　　[D] they are much worse
　　56．Nowadays，the athletes’expenses are paid_______________.
　　[A]out of the prize money of the winners
　　[B]out of the funds raised by the competing nations
　　[C]by the athletes themselves
　　[D]by contributions