A、θ=t<sub>wsub> B、θ>t<sub>wsub> C、θ=t D、θ=t<sub>dsub>
A、θ=t<sub>wsub> B、θ>t<sub>wsub> C、θ=t D、θ=t<sub>dsub>
A、p=p<sub>0sub>+ 2γ/R’ B、ln(p/p<sub>0sub>)=ΔVapHm(1/T<sub>0sub>- 1/T)/R C、RTln(p/p<sub>0sub>)=2γM/ρR’ D、p=nRT/V
A、E(t,t<sub>1sub>) B、E(t,0) C、E(t<sub>1sub>,0) D、E(t,t<sub>1sub>)﹣E(t<sub>1sub>,0)
A、R-R<sub>0sub>=-k(T<sub>ysub>-T<sub>ssub>) B、R<sub>0sub>-R=-k(T<sub>ysub>-T<sub>ssub>) C、R-R<sub>0sub>=k(T<sub>ysub>-T<sub>ssub>) D、R+R<sub>0sub>=-k(T<sub>ysub>-T<sub>ssub>)
A、ρ<sub>20sub>=ρ<sub>20sub>-r(20-r) B、ρ<sub>20sub>=ρ<sub>20sub>-r(t-20) C、ρ<sub>20sub>=ρ<sub>20sub>+r(t-20) D、ρ<sub>20sub>=ρ<sub>20sub>+r(20-r)
A、t<sub>1/2sub>>t<sub>1/2sub>ˊ B、t<sub>1/2sub>=t<sub>1/2sub>ˊ C、t<sub>1/2sub><t<sub>1/2sub>ˊ D、无法判断
A、t<sub>1sub>〈t<sub>2sub> B、t<sub>1sub>=t<sub>2sub> C、t<sub>1sub>>t<sub>2sub> D、不能判断
A、t<sub>1/2sub>ˊ<t<sub>1/2sub> B、t<sub>1/2sub>ˊ=t<sub>1/2sub> C、t<sub>1/2sub>ˊ>t<sub>1/2sub> D、无法判断