A．100kPa B．150kPa C．200kPa D．250kPa
A．1cm B．2cm C．5cm D．10cm
A．2．0% B．2．5% C．3．0% D．4．0%
A．4m B．5m C．6m D．7m
A．1．5m B．2．0m C．2．5m D．3．0m
