A:10 years old.
B:11 years old.
C:12 years old.
____(Who's, What's) he like?
一物体在水平面上,受恒定的水平拉力和摩擦力作用由静止开始沿直线运动,已知在第1秒内合力对物体做的功为45J,在第1秒末撤去拉力,其v﹣t图象如图所示,g取10m/s2,则( )
墨水用肥皂____(填“洗的掉”或“洗不掉”)。
— 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.