---What do you think of your new English teacher？

--- She was well prepared for her first lesson and left us a good________.

A．expression

B．instruction

C．appearance

D．impression

现时价值评估和承保风险评估是保险公估人所涉足的重要业务领域，二者( )。

A．都属于理赔公估业务

B．评估的委托人相同

C．评估报告仅作为理赔的参考依据

D．在保险公司承保以前对标的物进行评估