原保险人因将保险责任转移给再保险人所付出的相应代价称为( )。
A．原保费
B．分保手续费
C．纯益手续费
D．分保费
参考答案：D
边际收益产量等于某产品生产中生产要素的边际产量与边际收益的乘积。它表示每增加一单位生产要素可以获得的收益增量。( )
After all the students had taken their seats, the teacher _______the examination paper.
A．handedin
B．handedon
C．handedout
D．handedover
