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【判断题】
在一种可变要素投入的生产函数条件下,可变要素合理投入区域AP>MP>0的阶段。A.
正确
B.
错误
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反馈参考答案：
举一反三
【判断题】Given the same diameter of gear pitch circle, the gear pump with fewer teeth has larger delivery.
A.
正确
B.
错误
【单选题】Which of the following expressions is semantically ambiguous?
A.
arrest
B.
phone
C.
enter
D.
color
E.
all of the above
【单选题】When drawing a gear, the pitch circle is represented by (Single option: 10 points)
A.
Thin dot-dash line
B.
Thick solid line
C.
Thin solid line
D.
None
【单选题】Pitch-circle diameter for a gear is (Single option: 10 points)
A.
mz
B.
m(z+2)
C.
m(z-2.5)
D.
None
【单选题】Drawing of a single gear, for external view , the pitch circle is shown with ( )
A.
tick line
B.
dashed dotted line
C.
thin line
D.
dashed line
【单选题】带有电流截止负反馈环节的调速系统,为了使电流截止负反馈参与调节后机械特性曲线下垂更陡一些,应把反馈取样电阻阻值选得( )。
A.
小一些
B.
大一些
C.
接近无穷大
D.
零
【单选题】Gear pitch is an important parameter, which circle should be measured and obtain it? (Single option: 10 points)
A.
Pitch-circle diameter
B.
Addendum-circle diameter
C.
eddendum-circle diameter
D.
None
【单选题】Which of these chapters in the Gear Up Book is NOT included in the final pitch?
A.
Customers
B.
Delight
C.
Business Model
D.
Reality Test
E.
Go Global
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