A、<span style="font-size:16px;font-family:宋体">被控变量</span>
B、<span style="font-size:16px;font-family:宋体">控制变量</span>
C、<span style="font-size:16px;font-family:宋体">操纵变量</span>
D、<span style="font-size:16px;font-family:宋体">干扰量</span><span style="font-family: 宋体;font-size: 16px">干扰量</span>