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【单选题】
CEE-1型磁粉探伤仪其中第二个E代表（）。
A.
携带式
B.
移动式
C.
固定式
D.
磁轭式
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【单选题】第二篇 Sleep We all know that the normal human daily cycle of activity is of some 7 - 8 hours’ sleep alternating with some 16 - 17 hours’ wakefulness and that, broadly speaking, the sleep n...
A.
people hate the inconvenience of working on night shifts.
B.
your life is disturbed by changing from day to night routines and back.
C.
not all industries work at the same hours.
D.
it is difficult to find a corps of good night workers.
【单选题】手推式钢轨探伤仪日常保养的主要内容有（ ）。
A.
每次作业前，对仪器探头膜、水阀、开关、插件等关键部件检查
B.
每次作业完毕后，擦拭仪器、充电
C.
对有关部件进行调整、紧固等
D.
以上都是
相关题目：
【单选题】第二篇 Sleep We all know that the normal human daily cycle of activity is of some 7 - 8 hours’ sleep alternating with some 16 - 17 hours’ wakefulness and that, broadly speaking, the sleep n...
A.
people hate the inconvenience of working on night shifts.
B.
your life is disturbed by changing from day to night routines and back.
C.
not all industries work at the same hours.
D.
it is difficult to find a corps of good night workers.
【单选题】手推式钢轨探伤仪日常保养的主要内容有（ ）。
A.
每次作业前，对仪器探头膜、水阀、开关、插件等关键部件检查
B.
每次作业完毕后，擦拭仪器、充电
C.
对有关部件进行调整、紧固等
D.
以上都是
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