(2013·福建高考)________basic first­aid techniques will help you respond quickly to emergencies.

A．Known

B．Having known

C．Knowing

D．Being known

保险企业因破产、解散、分立、合并而发生的变更，属于（）变更

A.保险合同内容变更

B.保险合同客体变更

C.保险合同主体变更

D.保险合同标的变更