气割带有折角和圆弧的割件时,从边缘开始,()。
A、割嘴应始终垂直于钢板
B、割角保持一定
C、要不断变换割嘴角度
D、割嘴应始终平行于钢板
参考答案:A
I’m terribly sorry to turn you down this time, but I promise I will ________ to you next time.
A.pick it up
B.make it up
C.turn it up
D.set it up
彻底破译拉希德碑的人是()。