— Ang Lee, a Chinese director, won the Best Director again in his last year.
— How great he was! It was his time to win an Oscar.
A:fifty; twice
B:fiftieth; second
C:fifties; second
D:fifties; two
回答下列问题:
圆的弦长与它的半径相等,那么这条弦所对的圆周角的度数是( )
下列关于变异的叙述中,正确的是( )