控制系统的稳定性与（）有关。
A.输入变量
B.系统自身结构和参数
C.外界干扰
D.初始条件
参考答案：B
Mike, whose ambition is to become a network engineer, was always ______from other boys by his programming ability.
A．prevented
B．separated
C．benefited
D．distinguished
其他鲜、冷或冻骆驼及其他骆驼科
