A:2Na2O2+2H2O===4NaOH+O2↑
B:C+H2OCO+H2
C:Cl2+H2O===HCl+HClO
D:2F2+2H2O===4HF+O2
We're trying to________a few hundred dollars every month for our vacation.
物体在相同的力F的作用下沿力的方向移动了距离s,试比较在如图所示的三种情况中力F对物体做功的多少
秋水仙素诱导多倍体形成的原因是