There is always a temperature T0 for every van der Waals' gas. When TT0, the isotherm determined by van der Waals' equation will have a section of p0. In that case, the isotherm determined by van der Waals' equation should be amended so that Maxwell's rule can be used to deal with the problem of liquidvapour trasition.
The original real estate tax in China lags hehind increasingly.It can not meet the needs of the socialist market economy development.So it is necessary and urgent to reform the real estate tax legislation.This paper points out the deficiencies in institutional design of real estate tax and the inadequate taxes function.It also presents the legislative reform targets,defines the ownership of the rights of legislation,administration and assessment rights of real estate tax.Meanwhile, it makes institutional design from the perspective of taxpayers,taxbase,incidence of taxation,tax rates and other elements.
