再生系统的波动只会影响到分离系统的稳定运行。
参考答案：错
解析：不仅会影响分离系统的稳定运行。而且影响裂解炉的稳定运行
My father, together with some of his old friends, there already.
A．have been
B．has been
C．had been
D．will be
TOD
