A:加速度最大的质点
B:初速度最大的质点
C:末速度最大的质点
D:平均速度最大的质点
将1.12g铁粉加入25mL2mol/L的FeCl3溶液中,充分发生反应后,其结果是( )
Having too many friends is not always good. Maybe we should ________ a smaller, but closer group of friends.