It is said that the football match may be _____  because of the bad weather. [ ]

A. put up

B. put down

C. put off

D. put away

如图所示，重为9.8牛的木块静止在水面上，木块所受到的浮力大小为     牛，木块浸入水中的体积为     米³。若将木块往下压，木块下表面所处的深度增加了0.1米，则下表面受到水的压强增加了      帕。