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【单选题】
质量成本中的鉴定成本包括的内容有()。
A.
质量评审费
B.
工序控制费
C.
质量信息费
D.
复检和筛选费
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参考答案:
举一反三
【单选题】若点P的极坐标为(2, ),则该点的直角坐标为 (    )
A.
( , 1)
B.
(1, )
C.
(1,- )
D.
( ,-1)
【单选题】在平面直角坐标系xOy中,点P的坐标为(-1,1),若取原点O为极点,x轴正半轴为极轴,建立极坐标系,则在下列选项中,不是点P极坐标的是(  )
A.
( )
B.
( )
C.
( )
D.
( )
【单选题】在平面直角坐标系xOy中,点P的坐标为(-1,1),若取原点O为极点,x轴正半轴为极轴,建立极坐标系,则在下列选项中,不是点P极坐标的是(  )
A.
( 2 , 3π 4 )
B.
( 2 ,- 5π 4 )
C.
( 2 , 11π 4 )
D.
( 2 ,- π 4 )
【单选题】Our teacher lives in the house ____ door faces to the north.
A.
which
B.
his
C.
that
D.
whose
【单选题】在平面直角坐标系 中,点P的直角坐标为 。若以圆点O为极点, 轴半轴为极轴建立坐标系,则点P的极坐标可以是
A.
B.
C.
【单选题】When is Black Friday?
A.
One day after Thanksgiving.
B.
Two days after Thanksgiving
C.
Three days after Thanksgiving.
D.
Four days after Thanksgiving
【简答题】When is Black Friday of 2020?写法同上
【单选题】(2).(坐标系与参数方程选做题)若以直角坐标系的原点为极点, 轴的非负半轴为极轴建立极坐标系,则线段 的极坐标为( )
A.
B.
C.
【简答题】Black Friday Black Friday is the Friday following Thanksgiving in the U.S. On this day, the Christmas shopping season begins and large stores all over the US have sales. Recently, Black Friday has bee...
【简答题】Black Friday Black Friday is the Friday following Thanksgiving in the US. On this day,the Christmas shopping season begins and large stores all over the US have sales. Recently,Black Friday has been t...
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