Porumus
2022-06-08T02:05:46+00:00
已知:木头密度<水,有20公斤水
问:能否浮起来一块30公斤的木头
问:能否浮起来一块30公斤的木头
Porumus
2022-06-08T02:05:46+00:00
SquarePushR
alkey
Brian N
Photon
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Глебченко
AirCon
22shernd
Chary
TheOtherWalt
The Senate
heyo
5⭐Ishi.
Dopemang
Skeletor
Rakim
ismokecbd
ronan
IrishSteve