If you want to get good grades, ____________, you should listen to the teacher _________ in class.

A．at first; careful

B．first of all; carefully

C．for the first time; careful

D．first of; carefully

针对家庭和个人保户设计的保单突出体现了保险合同是（）。

A.附和合同

B.补偿性合同

C.对人合同

D.最大诚信合同