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【单选题】
即选择工件的设计基准作为定位基准，以避免由于定位基准与（ ）不重合而引起的定位误差。A.
设计基准
B.
工序基准
C.
粗基准
D.
精基准
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反馈参考答案：
举一反三
【简答题】要定义一个3行4列的单精度型二维数组f,请写出使用的定义语句
【单选题】课文中表示“把某事当回事”的词组是?
A.
take sth an issue
B.
get sth an issue
C.
make sth an issue
D.
let sth an issue
【单选题】He is a very_____ student. He studies very ______. [ ]
A.
well, good
B.
good, well
C.
good, good
D.
well, well
【单选题】---John has got a very good job in the government . ---_______ he looks so happy.
A.
No, doubt
B.
No wonder
C.
That’s because
D.
It’s natural
【单选题】—Mr. Smith has got a very good job in the famous company. —_____ he looks so happy. [ ]
A.
It's certain
B.
That's because
C.
No doubt
D.
No wonder
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