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【单选题】
在同一工序中即有平面又有需要加工,而且的位置在平面的区域内,可采用 ( )。A.
粗铣平面→钻孔→精铣平面
B.
先加工平面，后加工
C.
先加工，后加工平面
D.
任一种形式
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B.
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C.
China depreciated its currency after the Asian financial crisis
D.
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