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搜题
【单选题】
The author implies which of the following about measles?
A.
It is not usually a fatal disease.
B.
It ceased to be a problem by the seventeenth century.
C.
It is the disease most commonly involved in virgin-soil epidemics.
D.
It was not a significant problem in Spanish colonies.
E.
It affects only those who are immunologically defenseless against it.
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【判断题】If only the diameter is known, a circle can be drawn in a plane figure.
A.
正确
B.
错误
【简答题】分封制 名词解释
【单选题】Which answer is correct about the projection of a plane interceptor in the following figure?
A.
H projection
B.
W projection
C.
V projection
D.
both the three projections
【单选题】下列旅游景点,既具有较高美学价值,又具有较高历史文化价值的是   (    )
A.
挪威峡湾
B.
川西九寨沟
C.
印度泰姬陵
D.
杭州西湖
【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
【简答题】封层(名词解释)
【单选题】当线圈中的磁通减小时,感应电流产生的磁通与原磁通方向( )。
A.
正比
B.
反比
C.
相反
D.
相同
【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
【简答题】封事(名词解释)
【简答题】封寄(名词解释)