In erect, sitting and semireclining position, the lowest parts of male and female are ________ respectively. A、rectovesical pouch and rectouterine pouch B、rectovesical pouch and vesicouterine pouch C、superior duodenal recess and vesicouterine pouch D、inferior duodenal recess and vesicouterine pouch E、rectovesical pouch and inferior duodenal recess