It is in their ability to speak ________ humans ________ from animals.

A．which；differ

B．that；different

C．which；different

D．that；differ

南京地铁消防设施包括（）系统、自动灭火系统、消火栓系统、防烟排烟系统、应急广播、应急照明、安全疏散设施等。