要求从既存在又不存在的东西转向存在的是：（）
A、亚里士多德
B、苏格拉底
C、柏拉图
D、巴门尼德
参考答案：C
As a young man, Comrade Zhou Enlai _____ the students movements and later _____ the Communist Party of China.
A．joined; took part in
B．took part in; joined
C．joined in; took part in
D．took part in; joined in
吸流变压器的切除程序：合单极开关→打开双极开关→合低压开关。
