换向阀的操纵方式有手动、机动、（）动、液动和电液动几种。
参考答案：电磁
________ in a red dress, she was easy to _______ in the big crowd.
A．Being dressed; pick out
B．Dressed; pick out
C．Dressed; be picked out
D．Having dressed; pick out
注塑机料筒清洗要注意哪些问题。
