A:第1s末的速度为1m/
B:第1s末的速度为10m/
C:第1s内下落的高度为1m
D:第1s内下落的高度为10m
下列句子中划线成语使用恰当的一项是( )
— Leonardo didn't win an Oscar __________ he acted in The Revenant《荒野猎人》.
— Yeah. It was hard for him to realize this dream, but he never gave up.