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【单选题】
数控系统的核心是( )。
A.
伺服电机
B.
数控装置
C.
反馈系统
D.
传动系统
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参考答案:
举一反三
【单选题】轨道上使用的III型混凝土轨枕长度为( )m。
A.
2.4
B.
2.5
C.
2.6
D.
2.7
【单选题】Changing her job like that is _____ to firing her. It’s nothing better than losing her job.
A.
particular
B.
comparative
C.
partial
D.
equivalent
【单选题】She’s tired of acting, and she _______ changing for a new job, but she hasn’t made up her mind yet.
A.
had considered
B.
has been considering
C.
considered
D.
is going to consider
【判断题】Emma liked her job in the beginning because it was always changing and developing.
A.
正确
B.
错误
【单选题】Changing her job like that is _____ to firing her. It’s nothing better than losing his job.
A.
particular
B.
comparative
C.
partial
D.
equivalent
【单选题】熟啤酒的保质期是( )天。
A.
50-110
B.
60-120
C.
3-4
D.
5-7
【单选题】提单的“倒签”是指供应商与船公司协商或串谋,使签发提单的日期( )实际装船日期。
A.
相同
B.
不同
C.
早于
D.
晚于
【单选题】(47530) 轨道上使用的III型混凝土轨枕长度为() m 。
A.
2.4
B.
2.5
C.
2.6
D.
2.7
【单选题】轨道上使用的III型混凝土轨枕长度为()m(中级线路工用)。
A.
2.4
B.
2.5
C.
2.6
D.
2.7
【简答题】She is ________________ changing her job right now.
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