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【单选题】
在 (50 , 50) 坐标点,钻一个深 10mm 的, Z 轴坐标零点位于零件表面上,则指令为A.
G85 X50.0 Y50.0 Z-10.0 R0 F50
B.
G81 X50.0 Y50.0 Z-10.0 R0 F50
C.
G81 X50.0 Y50.0 Z-10.0 R5.0 F50
D.
G85 X50.0 Y50.0 Z-10.0 R5.0 F50
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举一反三
【单选题】Yoga teaches the deliberate command of movement and breathing.
A.
The speech was a deliberate attempt to embarrass the government.
B.
She spoke in a slow and deliberate way.
C.
They deliberated on whether to continue with the talks.
D.
The jury deliberated for five days before finding him guilty
【单选题】Yoga teaches the deliberate command of movement and breathing.
A.
The speech was a deliberate attempt to embarrass the government.
B.
She spoke in a slow and deliberate way.
C.
They deliberated on whether to continue with the talks.
【简答题】阅读下图的梯形图和时序图,同时结合课中视频的讲解,写出途中定时器完成的演示接通的工作过程。
【单选题】An aircraft requires a panned overhaul each year at a cost of $5 000.This is a condition of being allowed to fly. How should the cost of the overhaul be treated in the financial statements?
A.
Accrued for over the year and charged to maintenance expenses
B.
Provided for in advance and charged to maintenance expenses
C.
Capitalize and depreciated over the period to the next overhaul
D.
Charged to profit of loss when the expenditure takes place
【简答题】阅读下图的梯形图和时序图,同时结合课中视频的讲解,写出途中定时器完成的演示接通的工作过程。
【单选题】Prior to any overhaul work on electric equipment, it is important to ensure the circuits are ___ .
A.
live
B.
dead
C.
excited
D.
on line
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