当前位置：在线题库搜索＞[单选题]数控机床进给系统不能采用（ ）电机驱动。的答案是什么？
问题：
[单选题]数控机床进给系统不能采用（ ）电机驱动。
A、直流伺服
B、笼式三相交流
C、步进
D、交流伺服
参考答案：
B
相关内容
- ● Mainly eat 3 or 4 partly cloudy to overcat occaional rain（）lowly outh moderate or good.
- ● （）any cae or upected cae of quarantinable dieae，or any cae of eruptive dieae or any death be dicovered，the local quarantine officer mut be notified immediately．
- ● Should any cae or upected cae of quarantinable dieae，or any cae of eruptive dieae or any death be dicovered，the local Quarantine Officer mut be（）immediately.
- ● 已知A=40；B=30；C=100；D=50，逻辑“与”运算符为and，“或”运算符为or，“非”运算符为not。计算表达式（A>B+20）or（B+60
- ● Mater are（）olely reponible for all damage or accident of whatever kind reulting from the navigating or handling of their veel by day or by night.
- ● 系统中雷达状态包括Unknown、Operational（or ON）、Failed（or OFF）、Detached。
- ● Owner are to be reponible for lo of or damage to the good or delay in delivery of the good only in cae the lo，damage or delay ha been caued by the improper or negligent towage of the good．Thi mean that（）.
- ● The carrier i liable for lo of or damage to the good or delay in delivery caued by fire，（）the claimant prove that the fire aroe from fault or neglect on the part of the carrier，hi ervant or agent.
- ● Shutdown price（or point，or rule） 停业价格（或停业点、停业原则）
- ● 翻译：With Average or With Particular Average（WA or WPA）（）
- ● 【参考范例二】Animal or Pet What i your favourite animal?
- ● ANB指令是（）指令，ORB是（）指令，与and、or指令不同。
