单选题
确保伺服控制单元处于打开位置。
A
A.Make sure that the service control unit is in the open position.
B
B.Make sure that the servo control unit is in the right position.
C
C.Make sure that the servo control unit is in the open position.
答案解析
正确答案:C
相关知识点:
伺服控制单元打开选open position
