A terrible terrorist attack      at the train station in Kunming, on March 1, 2014      29 death and more than 140 injuries.

A．occurred; caused

B．happened; caused

C．occurred; causing

D．happened; to cause

遗嘱是指被继承人生前按照法律规定处分自己的财产及安排与财产相关的事务，于死后发生法律效力的一种民事法律行为，遗嘱的形式不包括( )。

A．网络遗嘱

B．公证遗嘱

C．代书遗嘱

D．录音遗嘱