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【判断题】
车床上,刀尖圆弧只有在加工圆弧时才产生加工误差。
A.
正确
B.
错误
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参考答案:
举一反三
【简答题】什么是变质岩?其主要特征有哪些?建筑中常用的变质岩有哪些?
【单选题】_____ to do the work, I should do it some other day.
A.
If were I
B.
I were
C.
Were I
D.
Was I
【判断题】焊缝离开焊件中性轴的距离越大,焊后的弯曲变形就越大。
A.
正确
B.
错误
【单选题】一梁用两种方法搁置,则两种情况下的最大应力之比【图片】为【图片】
A.
1/4
B.
1/16
C.
1/64
D.
16
【简答题】一梁拟用图示两种方法搁置,则两种情况下的最大正应力之比 = 。
【简答题】______ de hacer mucho frío fuera.
【单选题】(I were ) you, I’ll go there. A、 B、 C、 D、
A.
If were I
B.
Were I
C.
I were
D.
I am
【单选题】______ to do the work, I should do it in a different way. A. If I was B. I were C. Was I D. Were I
A.
If I was
B.
I were
C.
Was I
D.
Were I
【单选题】一梁拟用图示两种方法搁置,则两种情况下的最大正应力之比 ( σ max ) a /( σ max ) b = 。
A.
1/4
B.
1/16
C.
1/64
D.
16
【判断题】互补品定价是指将主要产品定较高的价格而将附属产品定较低的价格。
A.
正确
B.
错误
参考解析:
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