The boy promised ___ mother never to lie to ___ again.

A．his, him

B．her, her

C．his, her

D．her, him

保额损失率是指()。

A.保险赔款额与保额之比

B.保额与保险赔款额之比

C.保险标的损失额与保额之比

D.保额与保险标的损失额之比