All people, ______ they are old or young, rich or poor, rich or poor, have been trying their best to

help those in need since the disaster.

[      ]

A. whatever

B. no matter

C. whether

D. however

请你根据108×24=2592直接写出下面各题的得数．

10.8×2.4=______1.08×2.4=______

259.2÷10.8=______2.592÷2.4=______．