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【判断题】
人的基本情绪包括喜怒哀乐。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】分封制 名词解释
【多选题】A plane figure moves in its plane. The velocity vectors of two different points on the plane figure are the same at a instant. Which statements are correct?
A.
All points in the plane figure have the same velocity at this instant.
B.
All points in the plane figure have the same acceleration at this instant.
C.
The angular acceleration of the plane figure must be zero, but the angular velocity may not be zero at this instant.
D.
The angular velocity of the plane figure must be zero, but the angular acceleration may not be zero at this instant.
【单选题】The plane in the following figure is ( ) (Single option:10 points)
A.
Frontal plane
B.
V-perpendicular plane
C.
W-perpendicular plane
D.
H-perpendicular plane
E.
Horizontal plane
F.
Profile plane
G.
Oblique plane
【单选题】What kind of projection plane parallel line is shown in the following figure?
A.
frontal line
B.
profile line
C.
general position line
D.
horizontal line
【单选题】The plane in the following figure is ( ) (Single option 10 points)
A.
Frontal plane
B.
V-perpendicular plane
C.
W-perpendicular plane
D.
H-perpendicular plane
E.
Profile plane
F.
Horizontal plane
G.
Oblique plane
【简答题】封事(名词解释)
【简答题】封寄(名词解释)
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